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California-Sunnyvale Lease Agreement (Phase II - Land) - BNP Leasing Corp. and Network Appliance Inc.

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                                 LEASE AGREEMENT
                                (PHASE II - LAND)




                                     BETWEEN





                             BNP LEASING CORPORATION

                                    ("BNPLC")



                                       AND



                             NETWORK APPLIANCE, INC.

                                     ("NAI")




                                   MAY 3, 1999

                             (SUNNYVALE, CALIFORNIA)





================================================================================


<PAGE>   2
                                TABLE OF CONTENTS



                                                                                                   Page
                                                                                                   ----
                                                                                                

1.      TERM                                                                                          2
        (a)    Scheduled Term                                                                         2
        (b)    Intentionally Deleted                                                                  2
        (c)    Intentionally Deleted                                                                  2
        (d)    Election by NAI to Terminate After Accelerating the Designated Sale Date               2
        (e)    Extension of the Term                                                                  3

2.      USE AND CONDITION OF THE PROPERTY                                                             3
        (a)    Use                                                                                    3
        (b)    Condition of the Property                                                              3
        (c)    Consideration for and Scope of Waiver                                                  4

3.      RENT                                                                                          4
        (a)    Base Rent Generally                                                                    4
        (b)    Impact of Collateral Upon Formulas                                                     4
        (c)    Calculation of and Due Dates for Base Rent                                             5
               (i)    Determination of Payment Due Dates, Generally                                   5
               (ii)   Special Adjustments to Base Rent Payment Dates and Periods                      5
               (iii)  Base Rent Formula for Periods During Which The Collateral Percentage is
                      100%                                                                            5
               (iv)   Base Rent Formula for Periods During Which The Collateral Percentage is
                      Greater Than Zero and Less Than 100%                                            6
               (v)    Base Rent Formula for Periods During Which The Collateral Percentage is
                      Zero                                                                            7
        (d)    Additional Rent                                                                        7
        (e)    Intentionally Deleted                                                                  8
        (f)    Intentionally Deleted                                                                  8
        (g)    Intentionally Deleted                                                                  8
        (h)    Intentionally Deleted                                                                  8
        (i)    No Demand or Setoff                                                                    8
        (j)    Default Interest and Order of Application                                              8

4.      NATURE OF THIS AGREEMENT                                                                      8
        (a)    "Net" Lease Generally                                                                  8
        (b)    No Termination                                                                         8
        (c)    Tax Reporting                                                                          9
        (d)    Characterization of this Land Lease                                                   10

5.      PAYMENT OF EXECUTORY COSTS AND LOSSES RELATED TO THE PROPERTY                                10
        (a)    Impositions                                                                           10
        (b)    Increased Costs; Capital Adequacy Charges                                             10



<PAGE>   3




                                                                                                        
        (c)    NAI's Payment of Other Losses; General Indemnification                                        11
        (d)    Exceptions and Qualifications to Indemnities                                                  13

6.      INTENTIONALLY DELETED                                                                                14

7.      INTENTIONALLY DELETED                                                                                14

8.      ENVIRONMENTAL                                                                                        14
        (a)    Environmental Covenants by NAI                                                                14
        (b)    Right of BNPLC to do Remedial Work Not Performed by NAI                                       14
        (c)    Environmental Inspections and Reviews                                                         15
        (d)    Communications Regarding Environmental Matters                                                15

9.      INSURANCE REQUIRED AND CONDEMNATION                                                                  16
        (a)    Liability Insurance                                                                           16
        (b)    Intentionally Deleted                                                                         16
        (c)    Failure to Obtain Insurance                                                                   16
        (d)    Condemnation                                                                                  16
        (e)    Waiver of Subrogation                                                                         16

10.     APPLICATION OF INSURANCE AND CONDEMNATION PROCEEDS                                                   17
        (a)    Collection and Application of Insurance and Condemnation Proceeds Generally                   17
        (b)    Advances of Escrowed Proceeds to NAI                                                          17
        (c)    Application of Escrowed Proceeds as a Qualified Prepayment                                    17
        (d)    Special Provisions Applicable After an Event of Default                                       18
        (e)    NAI's Obligation to Restore                                                                   18
        (f)    Takings of All or Substantially All of the
               Property on or after the Base Rent Commencement Date                                          18

11.     ADDITIONAL REPRESENTATIONS, WARRANTIES AND COVENANTS OF NAI CONCERNING THE PROPERTY                  18
        (a)    Compliance with Covenants and Laws                                                            18
        (b)    Operation of the Property                                                                     19
        (c)    Debts for Construction, Maintenance, Operation or Development                                 20
        (d)    Repair, Maintenance, Alterations and Additions                                                20
        (e)    Permitted Encumbrances and Development Documents                                              20
        (f)    Books and Records Concerning the Property                                                     21

12.     FINANCIAL COVENANTS AND OTHER COVENANTS INCORPORATED BY REFERENCE TO SCHEDULE 1                      21

13.     FINANCIAL STATEMENTS AND OTHER REPORTS                                                               21
        (a)    Financial Statements; Required Notices; Certificates                                          21

14.     ASSIGNMENT AND SUBLETTING BY NAI                                                                     23
        (a)    BNPLC's Consent Required                                                                      23
        (b)    Standard for BNPLC's Consent to Assignments and Certain Other Matters                         23
        (c)    Consent Not a Waiver                                                                          23

15.     ASSIGNMENT BY BNPLC                                                                                  23
        (a)    Restrictions on Transfers                                                                     23




                                       2
<PAGE>   4



                                                                                                        
        (b)    Effect of Permitted Transfer or other Assignment by BNPLC                                     23

16.     BNPLC'S RIGHT OF ACCESS                                                                              24

17.     EVENTS OF DEFAULT                                                                                    25

18.     REMEDIES                                                                                             26
        (a)    Basic Remedies                                                                                26
        (b)    Notice Required So Long As the Purchase Option and NAI's Initial Remarketing
               Rights and Obligations Continue Under the Purchase Agreement                                  27
        (c)    Enforceability                                                                                28
        (d)    Remedies Cumulative                                                                           28

19.     DEFAULT BY BNPLC                                                                                     28

20.     QUIET ENJOYMENT                                                                                      28

21.     SURRENDER UPON TERMINATION                                                                           29

22.     HOLDING OVER BY NAI                                                                                  29

23.     INDEPENDENT OBLIGATIONS EVIDENCED BY THE OTHER OPERATIVE DOCUMENTS                                   29





                             EXHIBITS AND SCHEDULES



Exhibit A    Legal Description

Exhibit B    Insurance Requirements

Exhibit C    Libor Period Election Form

Schedule 1   Financial Covenants and Other Requirements



                                       3

<PAGE>   5
                                 LEASE AGREEMENT
                                (PHASE II - LAND)


        This LEASE AGREEMENT (PHASE II - LAND) (this "LAND LEASE"), by and
between BNP LEASING CORPORATION, a Delaware corporation ("BNPLC"), and NETWORK
APPLIANCE, INC., a California corporation ("NAI"), is made and dated as of May
3, 1999, the Effective Date. ("EFFECTIVE DATE" and other capitalized terms used
and not otherwise defined in this Land Lease are intended to have the meanings
assigned to them in the Common Definitions and Provisions Agreement (Phase II -
Land) executed by BNPLC and NAI contemporaneously with this Land Lease. By this
reference, the Common Definitions and Provisions Agreement (Phase II - Land) is
incorporated into and made a part of this Land Lease for all purposes.)


                                    RECITALS

        Pursuant to the Existing Contract, which covers the Land described in
Exhibit , BNPLC is acquiring the Land and any appurtenances thereto and all
existing Improvements thereon from Seller contemporaneously with the execution
of this Land Lease.

        In anticipation of BNPLC's acquisition of the Land and the existing
Improvements thereon under the Existing Contract, BNPLC and NAI have reached
agreement as to the terms and conditions upon which BNPLC is willing to lease
the Land to NAI, and by this Land Lease BNPLC and NAI desire to evidence such
agreement.

                                GRANTING CLAUSES

        BNPLC does hereby LEASE, DEMISE and LET unto NAI for the term
hereinafter set forth all right, title and interest of BNPLC, now owned or
hereafter acquired, in and to:

        (1)     the Land;

        (2)     all easements and other rights appurtenant to the Land, whether
        now owned or hereafter acquired by BNPLC; and

        (3)     (A) any land lying within the right-of-way of any street, open
        or proposed, adjoining the Land, (B) any sidewalks and alleys adjacent
        to the Land and (C) any strips and gores between the Land and any
        abutting land not owned or leased by BNPLC.

BNPLC's interest in all property described in clauses (1) through (3) above are
hereinafter referred to collectively as the "REAL PROPERTY". The Real Property
does not include any Improvements (now existing or those to be constructed as
provided in the Other Lease Agreement and the Construction Management Agreement)
or BNPLC's rights appurtenant to the Improvements, it being understood that the
Other Lease Agreement constitutes a separate lease of the Improvements and the
appurtenances thereto, and only the Improvements and the appurtenances thereto,
from BNPLC to NAI.

        To the extent, but only to the extent, that assignable rights or
interests in, to or under the following have been or will be acquired by BNPLC
under the Existing Contract or acquired by BNPLC pursuant to Paragraph below,
BNPLC also hereby grants and assigns to NAI for the term of this Land Lease the
right to use and enjoy (and, in the case of contract rights, to enforce) such
rights or interests of BNPLC:


                                       4
<PAGE>   6
        (a)     the benefits, if any, conferred upon the owner of the Real
        Property by the Permitted Encumbrances and Development Documents; and

        (b)     any permits, licenses, franchises, certificates, and other
        rights and privileges against third parties related to the Real
        Property.

Such rights and interests of BNPLC, whether now existing or hereafter arising,
are hereinafter collectively called the "PERSONAL PROPERTY". The Real Property
and the Personal Property are hereinafter sometimes collectively called the
"PROPERTY."

         However, the leasehold estate conveyed hereby and NAI's rights
hereunder are expressly made subject and subordinate to the terms and conditions
of this Land Lease, to the Permitted Encumbrances, and to any other claims or
encumbrances not constituting Liens Removable by BNPLC.

                          GENERAL TERMS AND CONDITIONS

        The Property is leased by BNPLC to NAI and is accepted and is to be used
and possessed by NAI upon and subject to the following terms and conditions:

1.      TERM.

(a)     Scheduled Term . The term of this Land Lease (the "TERM") shall commence
on and include the Effective Date, and end on the first Business Day of
February, 2004, unless sooner terminated as expressly herein provided.

(b)     Intentionally Deleted .

(c)     Intentionally Deleted .

(d)     Election by NAI to Terminate After Accelerating the Designated Sale

Date .

        NAI shall be entitled to accelerate the Designated Sale Date (and thus
accelerate the purchase of BNPLC's interest in the Property by NAI or by an
Applicable Purchaser pursuant to the Purchase Agreement) by sending a notice to
BNPLC as provided in clause (2) of the definition of "Designated Sale Date" in
the Common Definitions and Provisions Agreement (Phase II - Land). In the event,
because of NAI's election to so accelerate the Designated Sale Date or for any
other reason, the Designated Sale Date occurs before the end of the scheduled
Term, NAI may terminate this Land Lease on or after the Designated Sale Date;
provided, however, as a condition to any such termination by NAI, NAI must have
done the following prior to the termination:

        (i)     purchased or caused an Applicable Purchaser to purchase the
        Property pursuant to the Purchase Agreement and satisfied all of NAI's
        other obligations under the Purchase Agreement;

        (ii)    paid to BNPLC all Base Rent and all other Rent due on or before
        or accrued through the Designated Sale Date; and

        (iii)   paid any Breakage Costs caused by BNPLC's sale of the Property
        pursuant to the Purchase Agreement.

(e)     Extension of the Term . The Term may be extended at the option of NAI
for two successive periods of five years each; provided, however, that prior to
any such extension the following conditions must have been satisfied: (A) at
least ninety days prior to the commencement of any such extension, BNPLC and NAI
must have agreed in writing upon, and received the consent and approval of
BNPLC's Parent and all other Participants to (1) a corresponding extension not
only to


                                       2
<PAGE>   7
the date for the expiration of the Term specified above in this Section, but
also to the date specified in clause (1) of the definition of Designated Sale
Date in the Common Definitions and Provisions Agreement (Phase II - Land), and
(2) an adjustment to the Rent that NAI will be required to pay for the
extension, it being expected that the Rent for the extension may be different
than the Rent required for the original Term, and it being understood that the
Rent for any extension must in all events be satisfactory to both BNPLC and NAI,
each in its sole and absolute discretion; (B) no Event of Default shall have
occurred and be continuing at the time of NAI's exercise of its option to
extend; and (C) immediately prior to any such extension, this Land Lease must
remain in effect. With respect to the condition that BNPLC and NAI must have
agreed upon the Rent required for any extension of the Term, neither NAI nor
BNPLC is willing to submit itself to a risk of liability or loss of rights
hereunder for being judged unreasonable. Accordingly, both NAI and BNPLC hereby
disclaim any obligation express or implied to be reasonable in negotiating the
Rent for any such extension. Subject to the changes to the Rent payable during
any extension of the Term as provided in this Paragraph, if NAI exercises its
option to extend the Term as provided in this Paragraph, this Land Lease shall
continue in full force and effect, and the leasehold estate hereby granted to
NAI shall continue without interruption and without any loss of priority over
other interests in or claims against the Property that may be created or arise
after the date hereof and before the extension.

2.      USE AND CONDITION OF THE PROPERTY.

(a)     Use . Subject to the Permitted Encumbrances, the Development Documents
and the terms hereof, NAI may use and occupy the Property during the Term, but
only for the following purposes.

        (i)     constructing, maintaining and using Improvements on the Land for
        purposes expressly permitted by and described in Paragraph 2(a) of the
        Other Lease Agreement; and

        (ii)    other lawful purposes approved in advance and in writing by
        BNPLC, which approval will not be unreasonably withheld after completion
        of the Construction Project (but NAI acknowledges that BNPLC's
        withholding of such approval shall be reasonable if BNPLC determines in
        good faith that (1) giving the approval may materially increase BNPLC's
        risk of liability for any existing or future environmental problem, or
        (2) giving the approval is likely to substantially increase BNPLC's
        administrative burden of complying with or monitoring NAI's compliance
        with the requirements of this Land Lease or other Operative Documents).

(b)     Condition of the Property. NAI ACKNOWLEDGES THAT IT HAS CAREFULLY AND
FULLY INSPECTED THE PROPERTY AND ACCEPTS THE PROPERTY IN ITS PRESENT STATE, AS
IS, AND WITHOUT ANY REPRESENTATION OR WARRANTY, EXPRESS OR IMPLIED, AS TO THE
CONDITION OF SUCH PROPERTY OR AS TO THE USE WHICH MAY BE MADE THEREOF. NAI ALSO
ACCEPTS THE PROPERTY WITHOUT ANY COVENANT, REPRESENTATION OR WARRANTY, EXPRESS
OR IMPLIED, BY BNPLC OR ITS AFFILIATES REGARDING THE TITLE THERETO OR THE RIGHTS
OF ANY PARTIES IN POSSESSION OF ANY PART THEREOF, EXCEPT AS EXPRESSLY SET FORTH
IN PARAGRAPH . BNPLC SHALL NOT BE RESPONSIBLE FOR ANY LATENT OR OTHER DEFECT OR
CHANGE OF CONDITION IN THE PROPERTY OR FOR ANY VIOLATIONS WITH RESPECT THERETO
OF APPLICABLE LAWS. FURTHER, THOUGH NAI MAY OBTAIN FROM THIRD PARTIES ANY
FACILITIES OR SERVICES TO WHICH NAI IS ENTITLED BY REASON OF THE ASSIGNMENT AND
LEASE OF PERSONAL PROPERTY SET FORTH ON PAGE OF THIS LAND LEASE, BNPLC SHALL NOT
BE REQUIRED TO FURNISH TO NAI ANY FACILITIES OR SERVICES OF ANY KIND, INCLUDING
WATER, STEAM, HEAT, GAS, AIR CONDITIONING, ELECTRICITY, LIGHT OR POWER.

(c)     Consideration for and Scope of Waiver . The provisions of subparagraph
above have been negotiated by BNPLC and NAI after due consideration for the Rent
payable hereunder and are intended to be a complete exclusion and negation of
any representations or warranties of BNPLC or its Affiliates, express or
implied, with respect to the Property that may arise pursuant to any law now or
hereafter in effect or otherwise, except as expressly set forth herein.


                                       3
<PAGE>   8

        However, such exclusion of representations and warranties by BNPLC is
not intended to impair any representations or warranties made by other parties,
the benefit of which may pass to NAI during the Term because of the definition
of Personal Property and Property above.

3.      RENT.

(a)     Base Rent Generally . On each Base Rent Date through the end of the
Term, NAI shall pay BNPLC rent ("BASE RENT"). Each payment of Base Rent must be
received by BNPLC no later than 10:00 a.m. (Pacific time) on the date it becomes
due; if received after 10:00 a.m. (Pacific time) it will be considered for
purposes of this Land Lease as received on the next following Business Day. At
least five days prior to any Base Rent Date upon which an installment of Base
Rent shall become due, BNPLC shall notify NAI in writing of the amount of each
installment, calculated as provided below. Any failure by BNPLC to so notify
NAI, however, shall not constitute a waiver of BNPLC's right to payment, but
absent such notice NAI shall not be in default hereunder for any underpayment
resulting therefrom if NAI, in good faith, reasonably estimates the payment
required, makes a timely payment of the amount so estimated and corrects any
underpayment within three Business Days after being notified by BNPLC of the
underpayment.

(b)     Impact of Collateral Upon Formulas . To ease the administrative burden
of this Land Lease and the Pledge Agreement, the formulas for calculating Base
Rent set out below in subparagraph reflect a reduction in the Base Rent equal to
the interest that would accrue on any Collateral provided in accordance with the
requirements of the Pledge Agreement from time to time if the Accounts (as
defined in the Pledge Agreement) bore interest at the Effective Rate. BNPLC has
agreed to such reduction to provide NAI with the economic equivalent of interest
on such Collateral, and in return NAI has agreed to the provisions of the Pledge
Agreement that excuse the actual payment of interest on the Accounts. By
incorporating such reduction of Base Rent into the formulas below, and by
providing for noninterest bearing Accounts in the Pledge Agreement, the parties
will avoid an unnecessary and cumbersome periodic exchange of equal payments. It
is not, however, the intent of BNPLC or NAI to understate Base Rent or interest
for financial reporting purposes. Accordingly, for purposes of any financial
reports that this Land Lease requires of NAI from time to time, NAI may report
Base Rent as if there had been no such reduction and as if the Collateral from
time to time provided in accordance with the requirements of the Pledge
Agreement had been maintained in Accounts bearing interest at the Effective
Rate.

(c)     Calculation of and Due Dates for Base Rent . Payments of Base Rent shall
be calculated and become due as follows:

        (i)     Determination of Payment Due Dates, Generally . For all Base
        Rent Periods subject to a LIBOR Period Election of one month or three
        months, Base Rent shall be due in one installment on the Base Rent Date
        upon which the Base Rent Period ends. For Base Rent Periods subject to a
        LIBOR Period Election of six months, Base Rent shall be payable in two
        installments, with the first installment becoming due on the Base Rent
        Date that occurs on the first Business Day of the third calendar month
        following the commencement of such Base Rent Period, and with the second
        installment becoming due on the Base Rent Date upon which the Base Rent
        Period ends.

        (ii)     Special Adjustments to Base Rent Payment Dates and Periods .
        Notwithstanding the foregoing:

                a)      Any Base Rent Period that begins before, and does not
                otherwise end before, a Failed Collateral Test Date shall end
                upon but not include such Failed Collateral Test Date, and such
                Failed Collateral Test Date shall constitute a Base Rent Date,
                upon which NAI must pay all accrued, unpaid Base Rent for the
                Base Rent Period just ended.


                                       4
<PAGE>   9
                b)      Consistent with clause (3) of the definition of LIBOR
                Period Election in the Common Definitions and Provisions
                Agreement (Phase II - Land), each successive Base Rent Date
                after any such Failed Collateral Test Date shall be the first
                Business Day of the first calendar month following the calendar
                month which includes the preceding Base Rent Date, so long as
                any Mandatory Collateral Period shall continue.

                c)      In addition to Base Rent due on a Failed Collateral Test
                Date, NAI must pay the Breakage Costs, if any, resulting from
                any early ending of a Base Rent Period on the Failed Collateral
                Test Date pursuant to the preceding clause 3(c)(ii)(a).

                d)      If NAI or any Applicable Purchaser purchases BNPLC's
                interest in the Property pursuant to the Purchase Agreement, any
                accrued unpaid Base Rent and all outstanding Additional Rent
                shall be due on the date of purchase in addition to the purchase
                price and other sums due BNPLC under the Purchase Agreement.

        (iii)   Base Rent Formula for Periods During Which The Collateral
        Percentage is 100% . Each installment of Base Rent payable for any Base
        Rent Period during which the Collateral Percentage is one hundred
        percent (100%) shall equal:

                o       Stipulated Loss Value on the first day of such Base Rent
                        Period, times

                o       the Secured Spread for the period from and including the
                        preceding Base Rent Date to but not including the Base
                        Rent Date upon which the installment is due, times

                o       the number of days in the period from and including the
                        preceding Base Rent Date to but not including the Base
                        Rent Date upon which the installment is due, divided by

                o       three hundred sixty.

        Assume, only for the purpose of illustration: that the Collateral
Percentage for a hypothetical Base Rent Period is one hundred percent (100%);
that prior to the first day of such Base Rent Period a total of $1,750,000 of
Qualified Prepayments have been received by BNPLC, leaving a Stipulated Loss
Value of $15,000,000; that the Secured Spread is thirty basis points (30/100 of
1%); and that such Base Rent Period contains exactly thirty days. Under such
assumptions, the Base Rent for the hypothetical Base Rent Period will equal:

                      $15,000,000 x .30% x 30/360 = $3,750

        (iv)     Base Rent Formula for Periods During Which The Collateral
        Percentage is Greater Than Zero and Less Than 100% . Each installment of
        Base Rent payable for any Base Rent Period during which the Collateral
        Percentage is greater than zero and less than one hundred percent (100%)
        shall equal:

                o       Stipulated Loss Value on the first day of such Base Rent
                        Period, times

                o       the sum of:

                        (A)     the product of:

                                (1)     the Collateral Percentage for such Base
                                        Rent Period, times


                                       5
<PAGE>   10
                                (2)     the Secured Spread for the period from
                                        and including the preceding Base Rent
                                        Date to but not including the Base Rent
                                        Date upon which the installment is due,
                                        plus

                        (B)     the product of:

                                (1)     one minus the Collateral Percentage for
                                        such Base Rent Period, times

                                (2)     the sum of (a) the Effective Rate with
                                        respect to such Base Rent Period, plus
                                        (b) the Unsecured Spread for the period
                                        from and including the preceding Base
                                        Rent Date to but not including the Base
                                        Rent Date upon which the installment is
                                        due, times

                o       the number of days in the period from and including the
                        preceding Base Rent Date to but not including the Base
                        Rent Date upon which the installment is due, divided by

                o       three hundred sixty.

                Assume, only for the purpose of illustration: that the
        Collateral Percentage for a hypothetical Base Rent Period is forty
        percent (40%); that prior to the first day of such Base Rent Period a
        total of $1,750,000 of Qualified Prepayments have been received by
        BNPLC, leaving a Stipulated Loss Value of $15,000,000; that the
        Effective Rate for the Base Rent Period is 6%; that the Secured Spread
        is thirty basis points (30/100 of 1%); that upon the commencement of
        such Base Rent Period the Unsecured Spread is one hundred fifty basis
        points (150/100 of 1%); and that such Base Rent Period contains exactly
        thirty days. Under such assumptions, the Base Rent for the hypothetical
        Base Rent Period will equal:

  $15,000,000 x {(40% x .30%) + ([1 - 40%] x [6% + 1.50%])} x 30/360 = $57,750

        (v)     Base Rent Formula for Periods During Which The Collateral
        Percentage is Zero . Each installment of Base Rent payable for any Base
        Rent Period during which the Collateral Percentage is zero shall equal:

                o       Stipulated Loss Value on the first day of such Base Rent
                        Period, times

                o       the sum of (a) the Effective Rate with respect to such
                        Base Rent Period, plus (b) the Unsecured Spread for the
                        period from and including the preceding Base Rent Date
                        to but not including the Base Rent Date upon which the
                        installment is due, times

                o       the number of days in the period from and including the
                        preceding Base Rent Date to but not including the Base
                        Rent Date upon which the installment is due, divided by

                o       three hundred sixty.

        Assume, only for the purpose of illustration: that the Collateral
Percentage for a hypothetical Base Rent Period is zero percent (0%); that prior
to the first day of such Base Rent Period a total of $1,750,000 of Qualified
Prepayments have been received by BNPLC, leaving a Stipulated Loss Value of
$15,000,000; that the Effective Rate for the Base Rent Period is 6%; that the
Unsecured Spread is one hundred fifty basis points (150/100 of 1%) upon the
commencement of


                                       6
<PAGE>   11
such Base Rent Period; and that such Base Rent Period contains exactly thirty
days. Under such assumptions, the Base Rent for the hypothetical Base Rent
Period will equal:

                  $15,000,000 x (6% + 1.50%) x 30/360 = $93,750

(d)     Additional Rent. All amounts which NAI is required to pay to or on
behalf of BNPLC pursuant to this Land Lease, together with every charge,
premium, interest and cost set forth herein which may be added for nonpayment or
late payment thereof, shall constitute rent (all such amounts, other than Base
Rent, are herein called "ADDITIONAL Rent", and together Base Rent and Additional
Rent are herein sometimes called "RENT").

(e)     Intentionally Deleted.

(f)     Intentionally Deleted.

(g)     Intentionally Deleted.

(h)     Intentionally Deleted.

(i)     No Demand or Setoff. Except as expressly provided herein, NAI shall pay
all Rent without notice or demand and without counterclaim, deduction, setoff or
defense.

(j)     Default Interest and Order of Application. All Rent shall bear
interest, if not paid when first due, at the Default Rate in effect from time to
time from the date due until paid; provided, that nothing herein contained will
be construed as permitting the charging or collection of interest at a rate
exceeding the maximum rate permitted under Applicable Laws. BNPLC shall be
entitled to apply any amounts paid by or on behalf of NAI against any Rent then
past due in the order the same became due or in such other order as BNPLC may
elect.

4.      NATURE OF THIS AGREEMENT.

(a)     "Net" Lease Generally. Subject only to the exceptions listed in
subparagraph 5.(d) below, it is the intention of BNPLC and NAI that Base Rent
and other payments herein specified shall be absolutely net to BNPLC and that
NAI shall pay all costs, expenses and obligations of every kind relating to the
Property or this Land Lease which may arise or become due, including: (i) any
taxes payable by virtue of BNPLC's receipt of amounts paid to or on behalf of
BNPLC in accordance with Paragraph 5; (ii) any amount for which BNPLC is or
becomes liable with respect to the Permitted Encumbrances or the Development
Documents; and (iii) any costs incurred by BNPLC (including Attorneys' Fees)
because of BNPLC's acquisition or ownership of any interest in the Property or
because of this Land Lease or the transactions contemplated herein.

        However, neither this subparagraph 4.(a) nor the indemnity in this
subparagraph 5.(c)(i) shall be construed to make NAI liable for (I) an
allocation of general overhead or internal administrative expenses of BNPLC or
any other Interested Party or (II) any duplicate payment of the same Loss to
both BNPLC and another Interested Party. (If, for example, BNPLC were required
to make a $10 fine because of a failure of the Property to comply with
Applicable Laws, and a Participant were required by the Participation Agreement
to reimburse BNPLC for 20% of the $10, NAI would not be required by this
subparagraph 4.(a) or by subparagraph 5.(c)(i) to pay both $10 to BNPLC and $2
to the Participant on account of the fine.)

(b)     No Termination. Except as expressly provided in this Land Lease itself,
this Land Lease shall not terminate, nor shall NAI have any right to terminate
this Land Lease, nor shall NAI be entitled to any abatement of the Rent, nor
shall the obligations of NAI under this Land Lease be excused, for any reason
whatsoever, including any of the following: (i) any damage to or the destruction
of all or any part of the Property from whatever cause, (ii) the taking of the
Property or any portion thereof by eminent domain or otherwise for any reason,
(iii) the prohibition, limitation or restriction of NAI's use or


                                       7
<PAGE>   12
development of all or any portion of the Property or any interference with such
use by governmental action or otherwise, (iv) any eviction of NAI or of anyone
claiming through or under NAI, (v) any default on the part of BNPLC under this
Land Lease or under any other agreement to which BNPLC and NAI are parties, (vi)
the inadequacy in any way whatsoever of the Property (it being understood that
BNPLC has not made, does not make and will not make any representation express
or implied as to the adequacy thereof), (vii) any latent or other defect in the
Property or any change in the condition thereof or the existence with respect to
the Property of any violations of Applicable Laws, or (viii) any other cause
whether similar or dissimilar to the foregoing. It is the intention of the
parties hereto that the obligations of NAI hereunder shall be separate and
independent of the covenants and agreements of BNPLC, that Base Rent and all
other sums payable by NAI hereunder shall continue to be payable in all events
and that the obligations of NAI hereunder shall continue unaffected, unless the
requirement to pay or perform the same shall have been terminated or limited
pursuant to an express provision of this Land Lease. Without limiting the
foregoing, NAI waives to the extent permitted by Applicable Laws, except as
otherwise expressly provided herein, all rights to which NAI may now or
hereafter be entitled by law (including any such rights arising because of any
implied "warranty of suitability" or other warranty under Applicable Laws) (i)
to quit, terminate or surrender this Land Lease or the Property or any part
thereof or (ii) to any abatement, suspension, deferment or reduction of the
Rent.

        However, nothing in this subparagraph 4.(b) shall be construed as a
waiver by NAI of any right NAI may have at law or in equity to the following
remedies, whether because of BNPLC's failure to remove a Lien Removable by BNPLC
or because of any other default by BNPLC under this Land Lease that continues
beyond the period for cure provided in Paragraph 19: (i) the recovery of
monetary damages, (ii) injunctive relief in case of the violation, or attempted
or threatened violation, by BNPLC of any of the express covenants, agreements,
conditions or provisions of this Land Lease which are binding upon BNPLC
(including the confidentiality provisions set forth in subparagraph 16.(c)
below), or (iii) a decree compelling performance by BNPLC of any of the express
covenants, agreements, conditions or provisions of this Land Lease which are
binding upon BNPLC.

(c)     Tax Reporting . BNPLC and NAI shall report this Land Lease and the
Purchase Agreement for federal income tax purposes as a conditional sale unless
prohibited from doing so by the Internal Revenue Service. If the Internal
Revenue Service shall challenge BNPLC's characterization of this Land Lease and
the Purchase Agreement as a conditional sale for federal income tax reporting
purposes, BNPLC shall notify NAI in writing of such challenge and consider in
good faith any reasonable suggestions by NAI about an appropriate response. In
any event, NAI shall (subject only to the limitations set forth in this
subparagraph) indemnify and hold harmless BNPLC from and against all
liabilities, costs, additional taxes (other than Excluded Taxes) and other
expenses that may arise or become due because of such challenge or because of
any resulting recharacterization required by the Internal Revenue Service,
including any additional taxes that may become due upon any sale under the
Purchase Agreement to the extent (if any) that such additional taxes are not
offset by tax savings resulting from additional depreciation deductions or other
tax benefits to BNPLC of the recharacterization. If BNPLC receives a written
notice of any challenge by the Internal Revenue Service that BNPLC believes will
be covered by this Paragraph, then BNPLC shall promptly furnish a copy of such
notice to NAI. The failure to so provide a copy of the notice to NAI shall not
excuse NAI from its obligations under this Paragraph; provided, that if none of
the officers of NAI and none of the employees of NAI responsible for tax matters
are aware of the challenge described in the notice and such failure by BNPLC
renders unavailable defenses that NAI might otherwise assert, or precludes
actions that NAI might otherwise take, to minimize its obligations hereunder,
then NAI shall be excused from its obligation to indemnify BNPLC against
liabilities, costs, additional taxes and other expenses, if any, which would not
have been incurred but for such failure. For example, if BNPLC fails to provide
NAI with a copy of a notice of a challenge by the Internal Revenue Service
covered by the indemnities set out in this Land Lease and NAI is not otherwise
already aware of such challenge, and if as a result of such failure BNPLC
becomes liable for penalties and interest covered by the indemnities in excess
of the penalties and interest that would have accrued if NAI had been promptly
provided with a copy of the notice, then NAI will be excused from any obligation
to BNPLC to pay the excess.

(d)     Characterization of this Land Lease . For purposes of determining the
appropriate financial accounting for this Land Lease and for purposes of
determining their respective rights and remedies under state law, BNPLC and NAI
believe


                                       8
<PAGE>   13
and intend that (i) this Land Lease constitutes a true lease, not a mere
financing arrangement, enforceable in accordance with its express terms, and the
preceding subparagraph is not intended to affect the enforcement of any other
provisions of this Land Lease or the Purchase Agreement, and (ii) the Purchase
Agreement shall constitute a separate and independent contract, enforceable in
accordance with the express terms and conditions set forth therein. In this
regard, NAI acknowledges that NAI asked BNPLC to participate in the transactions
evidenced by this Land Lease and the Purchase Agreement as a landlord and owner
of the Property, not as a lender. Although other transactions might have been
used to accomplish similar results, NAI expects to receive certain material
accounting and other advantages through the use of a lease transaction.
Accordingly, and notwithstanding the reporting for income tax purposes described
in the preceding subparagraph, NAI cannot equitably deny that this Land Lease
and the Purchase Agreement should be construed and enforced in accordance with
their respective terms, rather than as a mortgage or other security device, in
any action brought by BNPLC to enforce this Land Lease or the Purchase
Agreement.

5.      PAYMENT OF EXECUTORY COSTS AND LOSSES RELATED TO THE PROPERTY.

(a)     Impositions. Subject only to the exceptions listed in subparagraph
5.(d) below, NAI shall pay or cause to be paid prior to delinquency all ad
valorem taxes assessed against the Property and other Impositions. If requested
by BNPLC from time to time, NAI shall furnish BNPLC with receipts showing
payment of all Impositions prior to the applicable delinquency date therefor.

        Notwithstanding the foregoing, NAI may in good faith, by appropriate
proceedings, contest the validity, applicability or amount of any asserted
Imposition, and pending such contest NAI shall not be deemed in default under
any of the provisions of this Land Lease because of the Imposition if (1) NAI
diligently prosecutes such contest to completion in a manner reasonably
satisfactory to BNPLC, and (2) NAI promptly causes to be paid any amount
adjudged by a court of competent jurisdiction to be due, with all costs,
penalties and interest thereon, promptly after such judgment becomes final;
provided, however, in any event each such contest shall be concluded and the
contested Impositions must be paid by NAI prior to the earlier of (i) the date
that any criminal prosecution is instituted or overtly threatened against BNPLC
or its directors, officers or employees because of the nonpayment thereof or
(ii) the date any writ or order is issued under which any property owned or
leased by BNPLC (including the Property) may be seized or sold or any other
action is taken against BNPLC or against any property owned or leased by BNPLC
because of the nonpayment thereof, or (iii) any Designated Sale Date upon which,
for any reason, NAI or an Affiliate of NAI or any Applicable Purchaser shall not
purchase BNPLC's interest in the Property pursuant to the Purchase Agreement for
a price to BNPLC (when taken together with any additional payments made by NAI
pursuant to Paragraph 1(A)(2) of the Purchase Agreement, in the case of a
purchase by an Applicable Purchaser) equal to the Break Even Price.

(b)     Increased Costs; Capital Adequacy Charges. Subject only to the
exceptions listed in subparagraph 5.(d) below:

        (i)     If after the Effective Date there shall be any increase in the
        cost to BNPLC's Parent or any other Participant agreeing to make or
        making, funding or maintaining advances to BNPLC in connection with the
        Property because of any Banking Rules Change, then NAI shall from time
        to time, pay to BNPLC for the account of BNPLC's Parent or such other
        Participant, as the case may be, additional amounts sufficient to
        compensate BNPLC's Parent or the Participant for such increased cost. An
        increase in costs resulting from any imposition or increase of reserve
        requirements applicable to Collateral held from time to time by BNPLC's
        Parent or other Participants pursuant to the Pledge Agreement would be
        an increase covered by the preceding sentence. A certificate as to the
        amount of such increased cost, submitted to BNPLC and NAI by BNPLC's
        Parent or the other Participant, shall be conclusive and binding upon
        NAI, absent clear and demonstrable error.

        (ii)    BNPLC's Parent or any other Participant may demand additional
        payments ("CAPITAL ADEQUACY CHARGES") if BNPLC's Parent or the other
        Participant determines that any Banking Rules Change affects the amount
        of capital to be


                                       9
<PAGE>   14
        maintained by it and that the amount of such capital is increased by or
        based upon the existence of advances made or to be made to BNPLC to
        permit BNPLC to maintain BNPLC's investment in the Property. To the
        extent that BNPLC's Parent or another Participant demands Capital
        Adequacy Charges as compensation for the additional capital requirements
        reasonably allocable to such investment or advances, NAI shall pay to
        BNPLC for the account of BNPLC's Parent or the other Participant, as the
        case may be, the amount so demanded. Without limiting the foregoing,
        BNPLC and NAI hereby acknowledge and agree that the provisions for
        calculating Base Rent set forth herein reflect the assumption that the
        Pledge Agreement will cause a zero percent (0%) risk weight to be
        assigned to a percentage (equal to the Collateral Percentage) of the
        collective investment of BNPLC and the Participants in the Property
        pursuant to 12 Code of Federal Regulations, part 225, as from time to
        time supplemented or amended, or pursuant to any other similar or
        successor statute or regulation applicable to BNPLC and the
        Participants. If and so long as such risk weight is increased the
        assumed amount of zero percent (0%) because of a Banking Rules Change,
        Capital Adequacy Charges may be collected to yield the same rate of
        return to BNPLC, BNPLC's Parent and any other Participants (net of their
        costs of maintaining required capital) that they would have enjoyed from
        this Land Lease absent such increase.

        (iii)   Any amount required to be paid by NAI under this subparagraph
        shall be due ten days after a demand for such payment is received by
        NAI.

(c)     NAI's Payment of Other Losses; General Indemnification . Subject only to
the exceptions listed in subparagraph below:

        (i)     All Losses (including Environmental Losses) asserted against or
        incurred or suffered by BNPLC or other Interested Parties at any time
        and from time to time by reason of, in connection with or arising out of
        (A) their ownership or alleged ownership of any interest in the Property
        or the Rents, (B) the use and operation of the Property, (C) the
        negotiation, administration or enforcement of the Operative Documents,
        (D) the making of the Initial Funding Advance, (E) the breach by NAI of
        this Land Lease or any other document executed by NAI in connection
        herewith, (F) any failure of the Property or NAI itself to comply with
        Applicable Laws, (G) Permitted Encumbrances, (H) Hazardous Substance
        Activities, including those occurring prior to Effective Date, (I) any
        obligations under the Existing Contract related to the Property that
        survive the closing thereunder, or (K) any bodily or personal injury or
        death or property damage occurring in or upon or in the vicinity of the
        Property through any cause whatsoever, shall be paid by NAI, and NAI
        shall indemnify and defend BNPLC and other Interested Parties from and
        against all such Losses.

        (ii)    THE INDEMNITIES AND RELEASES PROVIDED HEREIN FOR THE BENEFIT OF
        BNPLC AND OTHER INTERESTED PARTIES, INCLUDING THE INDEMNITY SET FORTH IN
        THE PRECEDING SUBPARAGRAPH 5.(c)(i), SHALL APPLY EVEN IF AND WHEN THE
        SUBJECT MATTERS OF THE INDEMNITIES AND RELEASES ARE CAUSED BY OR ARISE
        OUT OF THE NEGLIGENCE OR STRICT LIABILITY OF BNPLC OR ANOTHER INTERESTED
        PARTY. FURTHER, SUCH INDEMNITIES AND RELEASES WILL APPLY EVEN IF
        INSURANCE OBTAINED BY NAI OR REQUIRED OF NAI BY THIS LAND LEASE OR OTHER
        OPERATIVE DOCUMENTS IS NOT ADEQUATE TO COVER LOSSES AGAINST OR FOR WHICH
        THE INDEMNITIES AND RELEASES ARE PROVIDED. NAI'S LIABILITY, HOWEVER, FOR
        ANY FAILURE TO OBTAIN INSURANCE REQUIRED BY THIS LAND LEASE OR OTHER
        OPERATIVE DOCUMENTS WILL NOT BE LIMITED TO LOSSES AGAINST WHICH
        INDEMNITIES ARE PROVIDED HEREIN, IT BEING UNDERSTOOD THAT SUCH INSURANCE
        IS INTENDED TO DO MORE THAN PROVIDE A SOURCE OF PAYMENT FOR LOSSES
        AGAINST WHICH BNPLC AND OTHER INTERESTED PARTIES ARE ENTITLED TO
        INDEMNIFICATION BY THIS LAND LEASE.

        (iii)   Costs and expenses for which NAI shall be responsible pursuant
        to this subparagraph 5.(c) will include appraisal fees, filing and
        recording fees, inspection fees, survey fees, taxes, brokerage fees and
        commissions, abstract fees, title policy fees, Uniform Commercial Code
        search fees, escrow fees and Attorneys' Fees incurred by BNPLC with
        respect to the


                                       10
<PAGE>   15
        Property, whether such costs and expenses are incurred at the time of
        execution of this Land Lease or at any time during the Term.

        (iv)    NAI's obligations under this subparagraph 5.(c) shall survive
        the termination or expiration of this Land Lease. Any amount to be paid
        by NAI under this subparagraph shall be due ten days after a demand for
        such payment is received by NAI.

        (v)     If an Interested Party notifies NAI of any claim or proceeding
        included in, or any investigation or allegation concerning, Losses for
        which NAI is responsible pursuant to this subparagraph 5.(c), NAI shall
        assume on behalf of the Interested Party and conduct with due diligence
        and in good faith the investigation and defense thereof and the response
        thereto with counsel selected by NAI, but satisfactory to the Interested
        Party; provided, that the Interested Party shall have the right to be
        represented by advisory counsel of its own selection and at its own
        expense; and provided further, that if any such claim, proceeding,
        investigation or allegation involves both NAI and the Interested Party
        and the Interested Party shall have reasonably concluded that there are
        legal defenses available to it which are inconsistent with or in
        addition to those available to NAI, then the Interested Party shall have
        the right to select separate counsel to participate in the investigation
        and defense of and response to such claim, proceeding, investigation or
        allegation on its own behalf, and NAI shall pay or reimburse the
        Interested Party for all Attorney's Fees incurred by the Interested
        Party because of the selection of such separate counsel. If NAI fails to
        assume promptly (and in any event within fifteen days after being
        notified of the applicable claim, proceeding, investigation or
        allegation) the defense of the Interested Party, then the Interested
        Party may contest (or settle, with the prior consent of NAI, which
        consent will not be unreasonably withheld) the claim, proceeding,
        investigation or allegation at NAI's expense using counsel selected by
        the Interested Party. Moreover, if any such failure by NAI continues for
        forty-five days or more after NAI is notified of any such claim,
        proceeding, investigation or allegation, the Interested Party may elect
        not to contest or continue contesting the same and instead, in
        accordance with the written advice of counsel, settle (or pay in full)
        all claims related thereto without NAI's consent and without releasing
        NAI from any obligations to the Interested Party under this
        subparagraph 5.(c).

(d)                   Exceptions and Qualifications to Indemnities.

        (i)     BNPLC acknowledges and agrees that nothing in subparagraph 4.(a)
        or the preceding subparagraphs of this Paragraph 5 shall be construed to
        require NAI to pay or reimburse an Interested Party for (w) any costs or
        expenses incurred by BNPLC or any transferee to accomplish any Permitted
        Transfers described in clauses (2), (3), (4), (6) or (7) of the
        definition thereof in the Common Definitions and Provisions Agreement
        (Phase II - Land), (x) Excluded Taxes, (y) Losses incurred or suffered
        by such Interested Party that are proximately caused by (and attributed
        by any applicable principles of comparative fault to) the Established
        Misconduct of that Interested Party, or (z) Losses incurred or suffered
        by Participants in connection with their negotiation or execution of the
        Participation Agreement or Pledge Agreement (or supplements making them
        parties thereto) or in connection with any due diligence they may
        undertake before entering into the Participation Agreement or Pledge
        Agreement. Further, without limiting BNPLC's rights (as provided in
        other provisions of this Land Lease and other Operative Documents) to
        include the following in the calculation of Stipulated Loss Value or the
        Break Even Price or collect Base Rent, a Supplemental Payment and other
        amounts, the calculation of which depends upon the Stipulated Loss Value
        or the Break Even Price, BNPLC acknowledges and agrees that nothing in
        subparagraph 4.(a) or the preceding subparagraphs of this Paragraph 5
        shall be construed to require NAI to pay or reimburse an Interested
        Party for:

                a)      costs paid by BNPLC with the proceeds of the Initial
                Funding Advance as part of the Transaction Expenses; or

                b)      Construction Advances made under (and as defined in) the
                Construction Management Agreement or the Other Lease Agreement,
                including costs and expenditures incurred or paid by or on
                behalf of BNPLC after any Landlord's Election to Continue
                Construction under (and as defined in) the Other Lease
                Agreement, to the extent


                                       11
<PAGE>   16
                that such costs and expenditures are considered to be
                Construction Advances pursuant to subparagraph 6(e) of the Lease
                Agreement.

        Further, if an Interested Party receives a written notice of Losses that
        such Interested Party believes are covered by the indemnity in
        subparagraph 5.(c)(i), then such Interested Party will be expected to
        promptly furnish a copy of such notice to NAI. The failure to so provide
        a copy of the notice to NAI shall not excuse NAI from its obligations
        under subparagraph 5.(c)(i); provided, that if NAI is unaware of the
        matters described in the notice and such failure renders unavailable
        defenses that NAI might otherwise assert, or precludes actions that NAI
        might otherwise take, to minimize its obligations, then NAI shall be
        excused from its obligation to indemnify such Interested Party (and any
        Affiliate of such Interested Party) against the Losses, if any, which
        would not have been incurred or suffered but for such failure. For
        example, if BNPLC fails to provide NAI with a copy of a notice of an
        obligation covered by the indemnity set out in subparagraph 5.(c)(i) and
        NAI is not otherwise already aware of such obligation, and if as a
        result of such failure BNPLC becomes liable for penalties and interest
        covered by the indemnity in excess of the penalties and interest that
        would have accrued if NAI had been promptly provided with a copy of the
        notice, then NAI will be excused from any obligation to BNPLC (or any
        Affiliate of BNPLC) to pay the excess.

        (ii)    [Intentionally Deleted.].

6.      INTENTIONALLY DELETED.

7.      INTENTIONALLY DELETED.

8.      ENVIRONMENTAL.

(a)     Environmental Covenants by NAI . NAI covenants that:

        (i)     NAI shall not conduct or permit others to conduct Hazardous
        Substance Activities, except Permitted Hazardous Substance Use and
        Remedial Work.

        (ii)    NAI shall not discharge or permit the discharge of anything on
        or from the Property that would require any permit under applicable
        Environmental Laws, other than (1) storm water runoff, (2) waste water
        discharges through a publicly owned treatment works, (3) discharges that
        are a necessary part of any Remedial Work, and (4) other similar
        discharges consistent with the definition herein of Permitted Hazardous
        Substance Use, in each case in strict compliance with Environmental
        Laws.

        (iii)   Following any discovery that Remedial Work is required by
        Environmental Laws or otherwise believed by BNPLC to be reasonably
        required, and to the extent not inconsistent with the other provisions
        of this Land Lease, NAI shall promptly perform and diligently and
        continuously pursue such Remedial Work, in each case in strict
        compliance with Environmental Laws.

        (iv)    If requested by BNPLC in connection with any Remedial Work
        required by this subparagraph, NAI shall retain independent
        environmental consultants acceptable to BNPLC to evaluate any
        significant new information generated during NAI's implementation of the
        Remedial Work and to discuss with NAI whether such new information
        indicates the need for any additional measures that NAI should take to
        protect the health and safety of persons (including employees,
        contractors and subcontractors and their employees) or to protect the
        environment. NAI shall implement any such additional measures to the
        extent required with respect to the Property by Environmental Laws or
        otherwise believed by BNPLC to be reasonably required and to the extent
        not inconsistent with the other provisions of this Land Lease.


                                       12
<PAGE>   17
(b)     Right of BNPLC to do Remedial Work Not Performed by NAI . If NAI's
failure to cure any breach of the covenants set forth in subparagraph 8.(a)
continues beyond the Environmental Cure Period (as defined below), BNPLC may, in
addition to any other remedies available to it, conduct all or any part of the
Remedial Work. To the extent that Remedial Work is done by BNPLC pursuant to the
preceding sentence (including any removal of Hazardous Substances), the cost
thereof shall be a demand obligation owing by NAI to BNPLC. As used in this
subparagraph, "ENVIRONMENTAL CURE PERIOD" means the period ending on the earlier
of: (1) one hundred eighty days after NAI is notified of the breach which must
be cured within such period, (2) the date that any writ or order is issued for
the levy or sale of any property owned by BNPLC (including the Property) because
of such breach, (3) the date that any criminal action is instituted or overtly
threatened against BNPLC or any of its directors, officers or employees because
of such breach, or (4) any Designated Sale Date upon which, for any reason, NAI
or an Affiliate of NAI or any Applicable Purchaser shall not purchase BNPLC's
interest in the Property pursuant to the Purchase Agreement for a net price to
BNPLC (when taken together with any Supplemental Payment made by NAI pursuant to
Paragraph 1(A)(2) of the Purchase Agreement, in the case of a purchase by an
Applicable Purchaser) equal to Stipulated Loss Value.

(c)     Environmental Inspections and Reviews . BNPLC reserves the right to
retain environmental consultants to review any report prepared by NAI or to
conduct BNPLC's own investigation to confirm whether NAI is complying with the
requirements of this Paragraph . NAI grants to BNPLC and to BNPLC's agents,
employees, consultants and contractors the right to enter upon the Property at
any time to inspect the Property and to perform such tests as BNPLC deems
necessary or appropriate to review or investigate Hazardous Substances in, on,
under or about the Property or any discharge or suspected discharge of Hazardous
Substances into groundwater or surface water from the Property. NAI shall
promptly reimburse BNPLC for the fees of its environmental consultants and the
costs of any such inspections and tests.

(d)     Communications Regarding Environmental Matters .

        (i)     NAI shall immediately advise BNPLC of (1) any discovery of any
        event or circumstance which would render any of the representations of
        NAI herein or in the Closing Certificate concerning environmental
        matters materially inaccurate or misleading if made at the time of such
        discovery and assuming that NAI was aware of all relevant facts, (2) any
        Remedial Work (or change in Remedial Work) required or undertaken by NAI
        or its Affiliates in response to any (A) discovery of any Hazardous
        Substances on, under or about the Property other than Permitted
        Hazardous Substances or (B) any claim for damages resulting from
        Hazardous Substance Activities, (3) NAI's discovery of any occurrence or
        condition on any real property adjoining or in the vicinity of the
        Property which could cause the Property or any part thereof to be
        subject to any ownership, occupancy, transferability or use restrictions
        under Environmental Laws, or (4) any investigation or inquiry of any
        failure or alleged failure by NAI to comply with Environmental Laws
        affecting the Property by any governmental authority responsible for
        enforcing Environmental Laws. In such event, NAI shall deliver to BNPLC
        within thirty days after BNPLC's request, a preliminary written
        environmental plan setting forth a general description of the action
        that NAI proposes to take with respect thereto, if any, to bring the
        Property into compliance with Environmental Laws or to correct any
        breach by NAI of this Paragraph 8, including any proposed Remedial Work,
        the estimated cost and time of completion, the name of the contractor
        and a copy of the construction contract, if any, and such additional
        data, instruments, documents, agreements or other materials or
        information as BNPLC may request.

        (ii)    NAI shall provide BNPLC with copies of all material written
        communications with federal, state and local governments, or agencies
        relating to the matters listed in the preceding clause (i). NAI shall
        also provide BNPLC with copies of any correspondence from third Persons
        which threaten litigation over any significant failure or alleged
        significant failure of NAI to maintain or operate the Property in
        accordance with Environmental Laws.

        (iii)   Prior to NAI's submission of a Material Environmental
        Communication to any governmental or regulatory agency or third party,
        NAI shall, to the extent practicable, deliver to BNPLC a draft of the
        proposed submission (together with the proposed date of submission), and
        in good faith assess and consider any comments of BNPLC regarding the


                                       13
<PAGE>   18
        same. Promptly after BNPLC's request, NAI shall meet with BNPLC to
        discuss the submission, shall provide any additional information
        requested by BNPLC and shall provide a written explanation to BNPLC
        addressing the issues raised by comments (if any) of BNPLC regarding the
        submission, including a reasoned analysis supporting any decision by NAI
        not to modify the submission in accordance with comments of BNPLC.

9.      INSURANCE REQUIRED AND CONDEMNATION.

(a)     Liability Insurance . Throughout the Term NAI shall maintain commercial
general liability insurance against claims for bodily and personal injury, death
and property damage occurring in or upon or resulting from any occurrence in or
upon the Property under one or more insurance policies that satisfy the
requirements set forth in Exhibit B. NAI shall deliver and maintain with BNPLC
for each liability insurance policy required by this Land Lease written
confirmation of the policy and the scope of the coverage provided thereby issued
by the applicable insurer or its authorized agent, which confirmation must also
satisfy the requirements set forth in Exhibit B.

(b)     Intentionally Deleted .

(c)     Failure to Obtain Insurance . If NAI fails to obtain any insurance or to
provide confirmation of any such insurance as required by this Land Lease, BNPLC
shall be entitled (but not required) to obtain the insurance that NAI has failed
to obtain or for which NAI has not provided the required confirmation and,
without limiting BNPLC's other remedies under the circumstances, BNPLC may
require NAI to reimburse BNPLC for the cost of such insurance and to pay
interest thereon computed at the Default Rate from the date such cost was paid
by BNPLC until the date of reimbursement by NAI (provided, however, that any
such insurance cost paid by BNPLC prior to the Base Rent Commencement Date will
be charged against the Construction Allowance under, and as defined in, the
Construction Management Agreement as if it had been paid by NAI).

(d)     Condemnation . Immediately upon obtaining knowledge of the institution
of any proceedings for the condemnation of the Property or any portion thereof,
or any other similar governmental or quasi-governmental proceedings arising out
of injury or damage to the Property or any portion thereof, each party shall
notify the other (provided, however, BNPLC shall have no liability for its
failure to provide such notice) of the pendency of such proceedings. NAI shall,
at its expense, diligently prosecute any such proceedings and shall consult with
BNPLC, its attorneys and experts and cooperate with them as requested in the
carrying on or defense of any such proceedings. All proceeds of condemnation
awards or proceeds of sale in lieu of condemnation with respect to the Property
and all judgments, decrees and awards for injury or damage to the Property shall
be paid to BNPLC as Escrowed Proceeds, and all such proceeds will be applied as
provided in Paragraph . BNPLC is hereby authorized, in the name of NAI, at any
time when an Event of Default shall have occurred and be continuing, or
otherwise with NAI's prior consent, to execute and deliver valid acquittances
for, and to appeal from, any such judgment, decree or award concerning
condemnation of any of the Property. BNPLC shall not be in any event or
circumstances liable or responsible for failure to collect, or to exercise
diligence in the collection of, any such proceeds, judgments, decrees or awards.

(e)     Waiver of Subrogation . NAI, for itself and for any Person claiming
through it (including any insurance company claiming by way of subrogation),
waives any and every claim which arises or may arise in its favor against BNPLC
or any other Interested Party and the officers, directors, and employees of the
Interested Parties for any and all Losses, to the extent that NAI is compensated
by insurance or would be compensated by the insurance policies contemplated in
this Land Lease, but for any deductible or self-insured retention maintained
under such insurance or but for a failure of NAI to maintain the insurance as
required by this Land Lease. NAI agrees to have such insurance policies properly
endorsed so as to make them valid notwithstanding this waiver, if such
endorsement is required to prevent a loss of insurance.

10.     APPLICATION OF INSURANCE AND CONDEMNATION PROCEEDS.


                                       14
<PAGE>   19
(a)     Collection and Application of Insurance and Condemnation Proceeds
Generally. This Paragraph 10 shall govern the application of proceeds received
by BNPLC or NAI during the Term from any third party (1) as compensation for any
restriction placed upon the use or development of the Property or for the
condemnation of the Property or any portion thereof, or (2) because of any
judgment, decree or award for injury or damage to the Property (e.g.,damage
resulting from a third party's release of Hazardous Materials onto the
Property); excluding, however, any funds paid to BNPLC by BNPLC's Parent, by an
Affiliate of BNPLC or by any Participant that is made to compensate BNPLC for
any Losses BNPLC may suffer or incur in connection with this Land Lease or the
Property. NAI will promptly pay over to BNPLC any insurance, condemnation or
other proceeds covered by this Paragraph which NAI may receive from any insurer,
condemning authority or other third party. All proceeds covered by this
Paragraph 10, including those received by BNPLC from NAI or third parties, shall
be applied as follows:

        (i)     First, proceeds covered by this Paragraph 10 will be used to
        reimburse BNPLC for any costs and expenses, including Attorneys' Fees,
        that BNPLC incurred to collect the proceeds.

        (ii)    Second, the proceeds remaining after such reimbursement to BNPLC
        (hereinafter, the "REMAINING PROCEEDS") will be applied, as hereinafter
        more particularly provided, either as a Qualified Prepayment or to
        reimburse NAI or BNPLC for the actual out-of-pocket costs of repairing
        or restoring the Property. Until, however, any Remaining Proceeds
        received by BNPLC are applied by BNPLC as a Qualified Prepayment or
        applied by BNPLC to reimburse costs of repairs to or restoration of the
        Property pursuant to this Paragraph 10, BNPLC shall hold and maintain
        such Remaining Proceeds as Escrowed Proceeds in an interest bearing
        account, and all interest earned on such account shall be added to and
        made a part of such Escrowed Proceeds.

(b)     Advances of Escrowed Proceeds to NAI . Except as otherwise provided
below in this Paragraph 10, BNPLC shall advance all Remaining Proceeds held by
it as Escrowed Proceeds to reimburse NAI for the actual out-of-pocket cost to
NAI of repairing or restoring the Property in accordance with the requirements
of this Land Lease and the other Operative Documents as the applicable repair or
restoration progresses and upon compliance by NAI with such terms, conditions
and requirements as may be reasonably imposed by BNPLC. In no event, however,
shall BNPLC be required to pay Escrowed Proceeds to NAI in excess of the actual
out-of-pocket cost to NAI of the applicable repair or restoration, as evidenced
by invoices or other documentation satisfactory to BNPLC, it being understood
that BNPLC may retain and apply any such excess as a Qualified Prepayment.

(c)     Application of Escrowed Proceeds as a Qualified Prepayment . Provided no
Event of Default shall have occurred and be continuing, BNPLC shall apply any
Remaining Proceeds paid to it (or other amounts available for application as a
Qualified Prepayment) as a Qualified Prepayment on any date that BNPLC is
directed to do so by a notice from NAI; however, if such a notice from NAI
specifies an effective date for a Qualified Prepayment that is less than five
Business Days after BNPLC's actual receipt of the notice, BNPLC may postpone the
date of the Qualified Prepayment to any date not later than five Business Days
after BNPLC's receipt of the notice. In any event, except when BNPLC is required
by the preceding sentence to apply Remaining Proceeds or other amounts as a
Qualified Prepayment on an Advance Date or Base Rent Date, BNPLC may deduct
Breakage Costs incurred in connection with any Qualified Prepayment from the
Remaining Proceeds or other amounts available for application as the Qualified
Prepayment, and NAI will reimburse BNPLC upon request for any such Breakage
Costs that BNPLC incurs but does not deduct.

(d)     Special Provisions Applicable After an Event of Default .
Notwithstanding the foregoing, when any Event of Default shall have occurred and
be continuing, BNPLC shall be entitled to receive and collect all insurance,
condemnation or other proceeds governed by this Paragraph 10 and to apply all
Remaining Proceeds, when and to the extent deemed appropriate by BNPLC in its
sole discretion, either (A) to the reimbursement of NAI or BNPLC for the
out-of-pocket cost of repairing or restoring the Property, or (B) as Qualified
Prepayments.


                                       15
<PAGE>   20
(e)     NAI's Obligation to Restore. Regardless of the adequacy of any
Remaining Proceeds available to NAI hereunder, and notwithstanding other
provisions of this Land Lease to the contrary, if the Property is damaged or
less than all or substantially all of the Property is taken by condemnation, NAI
must:

        A)      increase the value of the Property or the remainder thereof by
        restoring the same (in a manner consistent with the requirements and
        limitations imposed by this Land Lease and the other Operative Documents
        or otherwise acceptable to BNPLC), or decrease Stipulated Loss Value by
        tendering a payment to BNPLC for application as a Qualified Prepayment,
        as necessary to cause Current AS IS Market Value to be not less than
        sixty percent (60%) of Stipulated Loss Value; and

        B)      restore the Property or the remainder thereof to a reasonably
        safe and sightly condition.

(f)     Takings of All or Substantially All of the Property on or after the Base
Rent Commencement Date. In the event of any taking of all or substantially all
of the Property on or after the Base Rent Commencement Date, BNPLC shall be
entitled to apply all Remaining Proceeds as a Qualified Prepayment. In addition,
if Stipulated Loss Value immediately prior to any such taking exceeds the sum of
the Remaining Proceeds resulting from such condemnation, then BNPLC shall be
entitled to recover the excess from NAI upon demand as an additional Qualified
Prepayment, whereupon this Land Lease shall terminate. Any taking of so much of
the Real Property as, in BNPLC's reasonable good faith judgment, makes it
impracticable to restore or improve the remainder thereof as required by part
(2) of the preceding subparagraph shall be considered a taking of substantially
all the Property for purposes of this Paragraph 10.

11.     ADDITIONAL REPRESENTATIONS, WARRANTIES AND COVENANTS OF NAI CONCERNING
THE PROPERTY. NAI represents, warrants and covenants as follows:


(a)     Compliance with Covenants and Laws. The use of the Property permitted
by this Land Lease complies, or will comply after NAI obtains available permits
as the tenant under this Land Lease, in all material respects with all
Applicable Laws. NAI has obtained or will promptly obtain all utility, building,
health and operating permits as may be required by any governmental authority or
municipality having jurisdiction over the Property for any construction upon or
use of the Property permitted by this Land Lease.

(b)     Operation of the Property. During the Term, NAI shall operate the
Property in a good and workmanlike manner and substantially in compliance with
all Applicable Laws and will pay or cause to be paid all fees or charges of any
kind in connection therewith. (If NAI does not promptly correct any failure of
the Property to comply with Applicable Laws that is the subject of a written
notice given to NAI or BNPLC by any governmental authority, then for purposes of
the preceding sentence, NAI shall be considered not to have maintained the
Property "substantially in accordance with Applicable Laws" whether or not the
noncompliance would be substantial in the absence of the notice.) During the
Term, NAI shall not use or occupy, or allow the use or occupancy of, the
Property in any manner which violates any Applicable Law or which constitutes a
public or private nuisance or which makes void, voidable or cancelable any
insurance then in force with respect thereto. During the Term, to the extent
that any of the following would, individually or in the aggregate, increase the
likelihood of a CMA Termination Event under (and as defined in) the Construction
Management Agreement or materially and adversely affect the value of the
Property or NAI's use, occupancy or operations on the Property, NAI shall not,
without BNPLC's prior consent: (i) initiate or permit any zoning
reclassification of the Property; (ii) seek any variance under existing zoning
ordinances applicable to the Property; (iii) use or permit the use of the
Property in a manner that would result in such use becoming a nonconforming use
under applicable zoning ordinances or similar laws, rules or regulations; (iv)
execute or file any subdivision plat affecting the Property; or (v) consent to
the annexation of the Property to any municipality. If (A) a change in the
zoning or other Applicable Laws affecting the permitted use or development of
the Property shall occur after the Base Rent Commencement Date that reduces the
value of the Property, or (B) conditions or circumstances on or about the
Property are


                                       16
<PAGE>   21
discovered after the Base Rent Commencement Date (such as the presence of an
endangered species) which substantially impede development and thereby reduce
the value of the Property, and if after any such reduction under clause (A) or
(B) preceding the Current AS IS Market Value of the Property is less than sixty
percent (60%) of Stipulated Loss Value, then NAI shall pay BNPLC upon request
the amount by which Current AS IS Market Value is less than sixty percent (60%)
of Stipulated Loss Value, for application as a Qualified Prepayment. During the
Term, NAI shall not cause or permit any drilling or exploration for, or
extraction, removal or production of, minerals from the surface or subsurface of
the Property, and NAI shall not do any act whereby the market value of the
Property may reasonably be expected to be materially lessened. During the Term,
if NAI receives a written notice or claim from any federal, state or other
governmental entity that the Property is not in compliance in any material
respect with any Applicable Law, or that any action may be taken against the
owner of the Property because the Property does not comply with Applicable Law,
NAI shall promptly furnish a copy of such notice or claim to BNPLC.

Notwithstanding the foregoing, NAI may in good faith, by appropriate
proceedings, contest the validity and applicability of any Applicable Law with
respect to the Property, and pending such contest NAI shall not be deemed in
default hereunder because of the violation of such Applicable Law, if NAI
diligently prosecutes such contest to completion in a manner reasonably
satisfactory to BNPLC, and if NAI promptly causes the Property to comply with
any such Applicable Law upon a final determination by a court of competent
jurisdiction that the same is valid and applicable to the Property; provided,
however, in any event such contest shall be concluded and the violation of such
Applicable Law must be corrected by NAI and any claims asserted against BNPLC or
the Property because of such violation must be paid by NAI, all prior to the
earlier of (i) the date that any criminal prosecution is instituted or overtly
threatened against BNPLC or any of its directors, officers or employees because
of such violation, (ii) the date that any action is taken by any governmental
authority against BNPLC or any property owned by BNPLC (including the Property)
because of such violation, or (iii) a Designated Sale Date upon which, for any
reason, NAI or an Affiliate of NAI or any Applicable Purchaser shall not
purchase BNPLC's interest in the Property pursuant to the Purchase Agreement for
a price to BNPLC (when taken together with any additional payments made by NAI
pursuant to Paragraph 1(A)(2) of the Purchase Agreement, in the case of a
purchase by an Applicable Purchaser) equal to the Break Even Price.

(c)     Debts for Construction, Maintenance, Operation or Development . NAI
shall cause all debts and liabilities incurred in the construction, maintenance,
operation or development of the Property, including all debts and liabilities
for labor, material and equipment and all debts and charges for utilities
servicing the Property, to be promptly paid; provided, that nothing in this
subparagraph will be construed to require NAI to remove Liens Removable by
BNPLC.

Notwithstanding the foregoing, NAI may in good faith, by appropriate
proceedings, contest the validity, applicability or amount of any asserted
mechanic's or materialmen's lien and pending such contest NAI shall not be
deemed in default under this subparagraph because of the contested lien if (1)
within sixty days after being asked to do so by BNPLC, NAI bonds over to BNPLC's
reasonable satisfaction all such contested liens against the Property alleged to
secure an amount in excess of $500,000 (individually or in the aggregate), (2)
NAI diligently prosecutes such contest to completion in a manner reasonably
satisfactory to BNPLC, and (3) NAI promptly causes to be paid any amount
adjudged by a court of competent jurisdiction to be due, with all costs and
interest thereon, promptly after such judgment becomes final; provided, however,
that in any event each such contest shall be concluded and the lien, interest
and costs must be paid by NAI prior to the earlier of (i) the date that any
criminal prosecution is instituted or overtly threatened against BNPLC or its
directors, officers or employees because of the nonpayment thereof, (ii) the
date that any writ or order is issued under which the Property or any other
property in which BNPLC has an interest may be seized or sold or any other
action is taken against BNPLC or any property in which BNPLC has an interest
because of the nonpayment thereof, or (iii) a Designated Sale Date upon which,
for any reason, NAI or an Affiliate of NAI or any Applicable Purchaser shall not
purchase BNPLC's interest in the Property pursuant to the Purchase Agreement for
a price to BNPLC (when taken together with any additional payments made by NAI
pursuant to Paragraph 1(A)(2) of the Purchase Agreement, in the case of a
purchase by an Applicable Purchaser) equal to the Break Even Price.


                                       17
<PAGE>   22
(d)     Repair, Maintenance, Alterations and Additions . NAI shall keep the
Property in good order, operating condition and appearance and shall cause all
necessary repairs, renewals and replacements to be promptly made. NAI will not
allow any of the Property to be materially misused, abused or wasted. NAI shall
not, without the prior consent of BNPLC, make material new Improvements or alter
Improvements in any material respect, except as part of the work performed in
accordance with the Construction Management Agreement. Without limiting the
foregoing, NAI will notify BNPLC before making any significant alterations to
the Improvements after the completion of the Construction Project. Nothing in
this subparagraph, however, is intended to limit NAI's rights and obligations
under other express provisions of the Other Lease Agreement and the Construction
Management Agreement with respect to the Construction Project.

(e)     Permitted Encumbrances and Development Documents . NAI shall during the
Term comply with and will cause to be performed all of the covenants, agreements
and obligations imposed upon the owner of any interest in the Property by the
Permitted Encumbrances or the Development Documents. Without limiting the
foregoing, NAI shall cause all amounts to be paid when due, the payment of which
is secured by any Lien against the Property created by the Permitted
Encumbrances. Without the prior consent of BNPLC, NAI shall not enter into,
initiate, approve or consent to any modification of any Permitted Encumbrance or
Development Document that would create or expand or purport to create or expand
obligations or restrictions which would encumber BNPLC's interest in the
Property. (Whether BNPLC must give any such consent requested by NAI during the
Term of this Land Lease shall be governed by subparagraph 3(A) of the Closing
Certificate and Agreement.)

(f)     Books and Records Concerning the Property . NAI shall keep books and
records that are accurate and complete in all material respects for the Property
and, subject to Paragraph 16.(c), will permit all such books and records to be
inspected and copied by BNPLC. This subparagraph shall not be construed as
requiring NAI to regularly maintain separate books and records relating
exclusively to the Property; provided, however, that upon request, NAI shall
construct or abstract from its regularly maintained books and records
information required by this subparagraph relating to the Property.

12.     FINANCIAL COVENANTS AND OTHER COVENANTS INCORPORATED BY REFERENCE TO
SCHEDULE 1. Throughout the Term of this Land Lease, NAI shall comply with the
requirements of Schedule 1 attached hereto.

13.     FINANCIAL STATEMENTS AND OTHER REPORTS.

(a)     Financial Statements; Required Notices; Certificates . Throughout the
Term of this Land Lease, NAI shall deliver to BNPLC and to each Participant:

        (i)     as soon as available and in any event within one hundred twenty
        days after the end of each fiscal year of NAI, a consolidated balance
        sheet of NAI and its Consolidated Subsidiaries as of the end of such
        fiscal year and a consolidated income statement and statement of cash
        flows of NAI and its Consolidated Subsidiaries for such fiscal year, all
        in reasonable detail and all prepared in accordance with GAAP and
        accompanied by a report and opinion of accountants of national standing
        selected by NAI, which report and opinion shall be prepared in
        accordance with generally accepted auditing standards and shall not be
        subject to any qualifications or exceptions as to the scope of the audit
        nor to any qualification or exception which BNPLC determines, in BNPLC's
        reasonable discretion, is unacceptable;

        (ii)     as soon as available and in any event within sixty days after
        the end of each of the first three quarters of each fiscal year of NAI,
        the consolidated balance sheet of NAI and its Consolidated Subsidiaries
        as of the end of such quarter and the consolidated income statement and
        the consolidated statement of cash flows of NAI and its Consolidated
        Subsidiaries for the period commencing at the end of the previous fiscal
        year and ending with the end of such quarter, all in reasonable detail
        and all prepared in accordance with GAAP and certified by the chief
        financial officer or controller of NAI (subject to year-end
        adjustments);


                                       18
<PAGE>   23
        (iii)     together with the financial statements furnished in accordance
        with subparagraph 13.(a)(i) and 13.(a)(ii), a certificate of the chief
        financial officer or controller of NAI: (i) certifying that to the
        knowledge of NAI no Default or Event of Default under this Land Lease
        has occurred and is continuing or, if a Default or Event of Default has
        occurred and is continuing, a brief statement as to the nature thereof
        and the action which is proposed to be taken with respect thereto, (ii)
        certifying that the representations of NAI set forth in the Operative
        Documents are true and correct in all material respects as of the date
        thereof as though made on and as of the date thereof or, if not then
        true and correct, a brief statement as to why such representations are
        no longer true and correct, and (iii) with computations demonstrating
        compliance with the financial covenants contained in Schedule 1;

        (iv)     within five days after the end of each calendar month, a
        certificate of the chief financial officer or controller of NAI
        certifying that at the end of the preceding calendar month, NAI had
        sufficient cash and other assets described in Paragraph 1 of Part II of
        Schedule 1 to comply with the requirements of that paragraph;

        (v)     promptly after the sending or filing thereof, copies of all
        proxy statements, financial statements and reports which NAI sends to
        NAI's stockholders, and copies of all regular, periodic and special
        reports, and all registration statements (other than registration
        statements on Form S-8 or any form substituted therefor) which NAI files
        with the Securities and Exchange Commission or any governmental
        authority which may be substituted therefor, or with any national
        securities exchange;

        (vi)     upon request by BNPLC, a statement in writing certifying that
        the Operative Documents are unmodified and in full effect (or, if there
        have been modifications, that the Operative Documents are in full effect
        as modified, and setting forth such modifications) and the dates to
        which the Base Rent has been paid and either stating that to the
        knowledge of NAI no Default or Event of Default under this Land Lease
        has occurred and is continuing or, if a Default or Event of Default
        under this Land Lease has occurred and is continuing, a brief statement
        as to the nature thereof; it being intended that any such statement by
        NAI may be relied upon by any prospective purchaser or mortgagee of the
        Property and by the Participants

        (vii)     as soon as possible after, and in any event within ten days
        after NAI becomes aware that, any of the following has occurred, with
        respect to which the potential aggregate liability to NAI relating
        thereto is $500,000 or more, a notice signed by a senior financial
        officer of NAI setting forth details of the following and the response,
        if any, which NAI or its ERISA Affiliate proposes to take with respect
        thereto (and a copy of any report or notice required to be filed with or
        given to PBGC by NAI or an ERISA Affiliate with respect to any of the
        following or the events or conditions leading up to the following): (A)
        the assertion, to secure any Unfunded Benefit Liabilities, of any Lien
        against the assets of NAI, against the assets of any Plan or
        Multiemployer Plan or against any interest of BNPLC or NAI in the
        Property, or (B) the taking of any action by the PBGC or any other
        governmental authority against NAI to terminate any Plan of NAI or any
        ERISA Affiliate of NAI or to cause the appointment of a trustee or
        receiver to administer any such Plan ; and

        (viii)     such other information respecting the condition or
        operations, financial or otherwise, of NAI, of any of its Subsidiaries
        or of the Property as BNPLC or any Participant through BNPLC may from
        time to time reasonably request.

BNPLC is hereby authorized to deliver a copy of any information or certificate
delivered to it pursuant to this subparagraph 13.(a) to BNPLC's Parent, to the
Participants and to any regulatory body having jurisdiction over BNPLC or
BNPLC's Parent or any Participant that requires or requests it.


                                       19
<PAGE>   24
14.     ASSIGNMENT AND SUBLETTING BY NAI.

(a)     BNPLC's Consent Required . Without the prior consent of BNPLC, NAI shall
not assign, transfer, mortgage, pledge or hypothecate this Land Lease or any
interest of NAI hereunder and shall not sublet all or any part of the Property,
by operation of law or otherwise; provided, that this provision will not be
construed to prohibit any sublease of space within Improvements expressly
permitted by the Other Lease Agreement.

(b)     Standard for BNPLC's Consent to Assignments and Certain Other Matters .
Consents and approvals of BNPLC which are required by this Paragraph will not be
unreasonably withheld or delayed, but NAI acknowledges that BNPLC's withholding
of such consent or approval shall be reasonable if BNPLC determines in good
faith that (1) giving the approval may materially increase BNPLC's risk of
liability for any existing or future environmental problem, or (2) giving the
approval is likely to increase BNPLC's administrative burden of complying with
or monitoring NAI's compliance with the requirements of this Land Lease.

(c)     Consent Not a Waiver . No consent by BNPLC to a sale, assignment,
transfer, mortgage, pledge or hypothecation of this Land Lease or NAI's interest
hereunder, and no assignment or subletting of the Property or any part thereof
in accordance with this Land Lease or otherwise with BNPLC's consent, shall
release NAI from liability hereunder; and any such consent shall apply only to
the specific transaction thereby authorized and shall not relieve NAI from any
requirement of obtaining the prior consent of BNPLC to any further sale,
assignment, transfer, mortgage, pledge or hypothecation of this Land Lease or
any interest of NAI hereunder.

15.     ASSIGNMENT BY BNPLC.

(a)     Restrictions on Transfers . Except by a Permitted Transfer, BNPLC shall
not assign, transfer, mortgage, pledge, encumber or hypothecate this Land Lease
or the other Operative Documents or any interest of BNPLC in and to the Property
during the Term without the prior consent of NAI, which consent NAI may withhold
in its sole discretion. Further, notwithstanding anything to the contrary herein
contained, if withholding taxes are imposed on the rents and other amounts
payable to BNPLC hereunder because of BNPLC's assignment of this Land Lease to
any citizen of, or any corporation or other entity formed under the laws of, a
country other than the United States, NAI shall not be required to compensate
BNPLC or any such assignee for the withholding tax. If, in breach of this
subparagraph, BNPLC transfer the Property or any part thereof by a conveyance or
that does not constitute a Permitted Transfer, with the result that additional
transfer taxes or other Impositions are assessed against the Property or the
owner thereof, BNPLC shall be required to pay such additional transfer taxes or
other Impositions.

(b)     Effect of Permitted Transfer or other Assignment by BNPLC . If, without
breaching subparagraph 15.(a), BNPLC sells or otherwise transfers the Property
and assigns all of its rights under this Land Lease and the other Operative
Documents, then BNPLC shall thereby be released from any obligations arising
after such assumption under this Land Lease or the other Operative Documents,
and NAI shall look solely to each successor in interest of BNPLC for performance
of such obligations.

16.     BNPLC'S RIGHT OF ACCESS.


(a)     During the Term, BNPLC and BNPLC's representatives may (subject to
subparagraph 16.(c)) enter the Property at any reasonable time after five
Business Days advance written notice to NAI for the purpose of making
inspections or performing any work BNPLC is authorized to undertake by the next
subparagraph or for the purpose confirming whether NAI has complied with the
requirements of this Land Lease or the other Operative Documents.


                                       20
<PAGE>   25
(b)     If NAI fails to perform any act or to take any action required of it by
this Land Lease or the Closing Certificate, or to pay any money which NAI is
required by this Land Lease or the Closing Certificate to pay, and if such
failure or action constitutes an Event of Default or renders BNPLC or any
director, officer, employee or Affiliate of BNPLC at risk of criminal
prosecution or renders BNPLC's interest in the Property or any part thereof at
risk of forfeiture by forced sale or otherwise, then in addition to any other
remedies specified herein or otherwise available, BNPLC may, perform or cause to
be performed such act or take such action or pay such money. Any expenses so
incurred by BNPLC, and any money so paid by BNPLC, shall be a demand obligation
owing by NAI to BNPLC. Further, BNPLC, upon making such payment, shall be
subrogated to all of the rights of the person, corporation or body politic
receiving such payment. But nothing herein shall imply any duty upon the part of
BNPLC to do any work which under any provision of this Land Lease NAI may be
required to perform, and the performance thereof by BNPLC shall not constitute a
waiver of NAI's default. BNPLC may during the progress of any such work
permitted by BNPLC hereunder on or in the Property keep and store upon the
Property all necessary materials, tools, and equipment. BNPLC shall not in any
event be liable for inconvenience, annoyance, disturbance, loss of business, or
other damage to NAI or the subtenants or invitees of NAI by reason of making
such repairs or the performance of any such work on or in the Property, or on
account of bringing materials, supplies and equipment into or through the
Property during the course of such work (except for any liability in excess of
the liability insurance limits established in Exhibit B resulting from death or
injury or damage to the property of third parties caused by the Established
Misconduct of BNPLC or its officers, employees, or agents in connection
therewith), and the obligations of NAI under this Land Lease shall not thereby
be excused in any manner.

(c)     NAI shall have no obligation to provide proprietary information (as
defined in the next sentence) to BNPLC, except and to the extent that (1) BNPLC
reasonably determines that BNPLC cannot accomplish the purposes of BNPLC's
inspection of the Property or exercise of other rights granted pursuant to the
various express provisions of this Land Lease and the other Operative Documents
without evaluating such information. For purposes of this Land Lease
"PROPRIETARY INFORMATION" includes NAI's intellectual property, trade secrets
and other confidential information of value to NAI about, among other things,
NAI's manufacturing processes, products, marketing and corporate strategies, but
in no event will "proprietary information" include any disclosure of substances
and materials (and their chemical composition) which are or previously have been
present in, on or under the Property at the time of any inspections by BNPLC,
nor will "proprietary information" include any additional disclosures reasonably
required to permit BNPLC to determine whether the presence of such substances
and materials has constituted a violation of Environmental Laws. In addition,
under no circumstances shall NAI have any obligation to disclose to BNPLC or any
other party any proprietary information of NAI (including, without limitation,
any pending applications for patents or trademarks, any research and design and
any trade secrets) except if and to the limited extent reasonably necessary to
comply with the express provisions of this Land Lease or the other Operative
Documents.

17.     EVENTS OF DEFAULT. Each of the following events shall be an "EVENT OF
DEFAULT" by NAI under this Land Lease:

(a)     NAI shall fail to pay when due any installment of Rent due hereunder and
such failure shall continue for three (3) Business Days after NAI is notified in
writing thereof.

(b)     NAI shall fail to cause any representation or warranty of NAI contained
herein or in the Closing Certificate that was false or misleading in any
material respect when made to be made true and not misleading (other than as
described in the other clauses of this Paragraph 17), or NAI shall fail to
comply with any term, provision or covenant of this Land Lease or the Closing
Certificate (other than as described in the other clauses of this Paragraph 17),
and in either case shall not cure such failure prior to the earlier of (A)
thirty days after written notice thereof is sent to NAI or (B) the date any writ
or order is issued for the levy or sale of any property owned by BNPLC
(including the Property) or any criminal prosecution is instituted or overtly
threatened against BNPLC or any of its directors, officers or employees because
of such failure; provided, however, that so long as no such writ or order is
issued and no such criminal prosecution is instituted or overtly threatened, the
period within which such failure may be cured by NAI shall be extended for a
further period (not to exceed an additional sixty days) as shall


                                       21
<PAGE>   26
be necessary for the curing thereof with diligence, if (but only if) (x) such
failure is susceptible of cure but cannot with reasonable diligence be cured
within such thirty day period, (y) NAI shall promptly have commenced to cure
such failure and shall thereafter continuously prosecute the curing thereof with
reasonable diligence and (z) the extension of the period for cure will not, in
any event, cause the period for cure to extend beyond five days prior to the
expiration of this Land Lease.

(c)     NAI shall abandon the Property.

(d)     NAI or any Subsidiary shall fail to make any payment or payments of
principal, premium or interest, of Debt of NAI described in the next sentence
when due (taking into consideration the time NAI may have to cure such failure,
if any, under the documents governing such Debt). As used in this clause
14(a)(v), "DEBT" shall include only Debt (as defined in the Common Definitions
and Provisions Agreement (Phase II - Land)) of NAI or any of its Subsidiaries
now existing or arising in the future (a) payable to BNPLC or any Affiliate of
BNPLC, or (B) payable to any other Person and with respect to which $3,000,000
or more is actually due and payable because of acceleration or otherwise.

(e)     NAI: (a) shall generally not, or be unable to, or shall admit in writing
its inability to, pay its debts as such debts become due; or (b) shall make an
assignment for the benefit of creditors, petition or apply to any tribunal for
the appointment of a custodian, receiver or trustee for it or a substantial part
of its assets; or (c) shall file any petition or application to commence any
proceeding under any bankruptcy, reorganization, arrangement, readjustment of
debt, dissolution or liquidation law or statute of any jurisdiction, whether now
or hereafter in effect; or (d) shall have had any such petition or application
filed against it; or (e) by any act or omission shall indicate its consent to,
approval of or acquiescence in any such petition, application or proceeding or
order for relief or the appointment of a custodian, receiver or trustee for all
or any substantial part of its property; or (f) shall suffer any such
custodianship, receivership or trusteeship to continue undischarged for a period
of sixty days or more.

(f)     One or more final judgments, decrees or orders for the payment of money
in excess of $3,000,000 in the aggregate shall be rendered against NAI and such
judgments, decrees or orders shall continue unsatisfied and in effect for a
period of thirty consecutive days without NAI's having obtained an agreement (or
after the expiration or termination of an agreement) of the Persons entitled to
enforce such judgment, decrees or orders not to enforce the same pending
negotiations with NAI concerning the satisfaction or other discharge of the
same.

(g)     NAI shall breach the requirements of Paragraph 12, which by reference to
Schedule 1 establishes certain financial covenants and other requirements.

(h)     as of the effective date of this Land Lease, any of the representations
or warranties of NAI contained in subparagraphs 2(A) - (J) of the Closing
Certificate shall be false or misleading in any material respect.

(i)     NAI shall fail to pay the full amount of any Supplemental Payment
required by the Purchase Agreement on the Designated Sale Date or shall fail to
provide Collateral as and when due pursuant to the Pledge Agreement Documents.

(j)     NAI shall fail to comply with any term, provision or condition of the
Pledge Agreements after the expiration of any applicable notice and cure period
set forth in the Pledge Agreement.

18.     REMEDIES.

(a)     Basic Remedies . At any time after an Event of Default and after BNPLC
has given any notice required by subparagraph 18(b), BNPLC shall be entitled at
BNPLC's option (and without limiting BNPLC in the exercise of any other right or
remedy BNPLC may have, and without any further demand or notice except as
expressly described in this subparagraph 18(a)), to exercise any one or more of
the following remedies:


                                       22
<PAGE>   27
        (i)     By notice to NAI, BNPLC may terminate NAI's right to possession
        of the Property. A notice given in connection with unlawful detainer
        proceedings specifying a time within which to cure a default shall
        terminate NAI's right to possession if NAI fails to cure the default
        within the time specified in the notice.

        (ii)    Upon termination of NAI's right to possession and without
        further demand or notice, BNPLC may re-enter the Property in any manner
        not prohibited by Applicable Law and take possession of all
        improvements, additions, alterations, equipment and fixtures thereon and
        remove any persons in possession thereof. Any property on the Land may
        be removed and stored in a warehouse or elsewhere at the expense and
        risk of and for the account of NAI.

        (iii)   Upon termination of NAI's right to possession, this Land Lease
        shall terminate and BNPLC may recover from NAI:

                a)      The worth at the time of award of the unpaid Rent which
                had been earned at the time of termination;

                b)      The worth at the time of award of the amount by which
                the unpaid Rent which would have been earned after termination
                until the time of award exceeds the amount of such rental loss
                that NAI proves could have been reasonably avoided;

                c)      The worth at the time of award of the amount by which
                the unpaid Rent for the balance of the scheduled Term after the
                time of award exceeds the amount of such rental loss that NAI
                proves could be reasonably avoided; and

                d)      Any other amount necessary to compensate BNPLC for all
                the detriment proximately caused by NAI's failure to perform
                NAI's obligations under this Land Lease or which in the ordinary
                course of things would be likely to result therefrom, including
                the costs and expenses (including Attorneys' Fees, advertising
                costs and brokers' commissions) of recovering possession of the
                Property, removing persons or property therefrom, placing the
                Property in good order, condition, and repair, preparing and
                altering the Property for reletting, all other costs and
                expenses of reletting, and any loss incurred by BNPLC as a
                result of NAI's failure to perform NAI's obligations under the
                other Operative Documents.

                The "WORTH AT THE TIME OF AWARD" of the amounts referred to in
                subparagraph 18.(a)(iii)a) and subparagraph 18.(a)(iii)b) shall
                be computed by allowing interest at the Default Rate. The "WORTH
                AT THE TIME OF AWARD" of the amount referred to in subparagraph
                18.(a)(iii)c)shall be computed by discounting such amount at the
                discount rate of the Federal Reserve Bank of San Francisco at
                the time of award plus one percent (1%).

                e)      Such other amounts in addition to or in lieu of the
                foregoing as may be permitted from time to time by applicable
                California law.

        (iv)    BNPLC shall have the remedy described in California Civil Code
        Section 1951.4 (lessor may continue lease in force even after lessee's
        breach and abandonment and recover rent as it becomes due, if lessee has
        right to sublet or assign, subject only to reasonable limitations).
        Accordingly, even if NAI has breached this Land Lease and abandoned the
        Property, this Land Lease shall continue in effect for so long as BNPLC
        does not terminate NAI's right to possession, and BNPLC may enforce all
        of BNPLC's rights and remedies under this Land Lease, including the
        right to recover the Rent as it becomes due under this Land Lease. NAI's
        right to possession shall not be deemed to have been terminated by BNPLC
        except pursuant to subparagraph 18.(a)(i) hereof. The following shall
        not constitute a termination of NAI's right to possession:


                                       23
<PAGE>   28
                a)      Acts of maintenance or preservation or efforts to relet
                the Property;

                b)      The appointment of a receiver upon the initiative of
                BNPLC to protect BNPLC's interest under this Land Lease; or

                c)      Reasonable withholding of consent to an assignment or
                subletting, or terminating a subletting or assignment by NAI.

(b)     Notice Required So Long As the Purchase Option and NAI's Initial
Remarketing Rights and Obligations Continue Under the Purchase Agreement . So
long as NAI remains in possession of the Property and there has been no
termination of the Purchase Option and NAI's Initial Remarketing Rights and
Obligations as provided Paragraph 4 of the Purchase Agreement, BNPLC's right to
exercise remedies provided in subparagraph 18.(a) will be subject to the
condition precedent that BNPLC shall have notified NAI, at a time when an Event
of Default shall have occurred and be continuing, of BNPLC's intent to exercise
remedies provided in subparagraph 18.(a) at least sixty days prior to exercising
the remedies. The condition precedent is intended to provide NAI with an
opportunity to exercise the Purchase Option or NAI's Initial Remarketing Rights
and Obligations before losing possession of the Property pursuant to
subparagraph 18.(a). The condition precedent is not, however, intended to extend
any period for curing an Event of Default. Accordingly, if an Event of Default
has occurred, and regardless of whether any Event of Default is then continuing,
BNPLC may proceed immediately to exercise remedies provided in subparagraph
18.(a) at any time after the earlier of (i) sixty days after BNPLC has given
such a notice to NAI, (ii) any date upon which NAI relinquishes possession of
the Property, or (iii) any termination of the Purchase Option and NAI's Initial
Remarketing Rights and Obligations.

(c)     Enforceability . This Paragraph shall be enforceable to the maximum
extent not prohibited by Applicable Law, and the unenforceability of any
provision in this Paragraph shall not render any other provision unenforceable.

(d)     Remedies Cumulative . No right or remedy herein conferred upon or
reserved to BNPLC is intended to be exclusive of any other right or remedy, and
each and every such right and remedy shall be cumulative and in addition to any
other right or remedy given to BNPLC hereunder or now or hereafter existing in
favor of BNPLC under Applicable Law or in equity. In addition to other remedies
provided in this Land Lease, BNPLC shall be entitled, to the extent permitted by
Applicable Law or in equity, to injunctive relief in case of the violation, or
attempted or threatened violation, of any of the covenants, agreements,
conditions or provisions of this Land Lease, or to a decree compelling
performance of any of the other covenants, agreements, conditions or provisions
of this Land Lease to be performed by NAI, or to any other remedy allowed to
BNPLC at law or in equity. Nothing contained in this Land Lease shall limit or
prejudice the right of BNPLC to prove for and obtain in proceedings for
bankruptcy or insolvency of NAI by reason of the termination of this Land Lease,
an amount equal to the maximum allowed by any statute or rule of law in effect
at the time when, and governing the proceedings in which, the damages are to be
proved, whether or not the amount be greater, equal to, or less than the amount
of the loss or damages referred to above. Without limiting the generality of the
foregoing, nothing contained herein shall modify, limit or impair any of the
rights and remedies of BNPLC under the Purchase Documents, and BNPLC shall not
be required to give the sixty day notice described in subparagraph 18.(b) as a
condition precedent to any acceleration of the Designated Sale Date or to taking
any action to enforce the Purchase Documents.

19.     DEFAULT BY BNPLC. If BNPLC should default in the performance of any of
its obligations under this Land Lease, BNPLC shall have the time reasonably
required, but in no event less than thirty days, to cure such default after
receipt of notice from NAI specifying such default and specifying what action
NAI believes is necessary to cure the default. If NAI prevails in any litigation
brought against BNPLC because of BNPLC's failure to cure a default within the
time required by the preceding sentence, then NAI shall be entitled to an award
against BNPLC for the monetary damages proximately caused to NAI by such
default.


                                       24
<PAGE>   29
        Notwithstanding the foregoing, BNPLC's right to cure as provided in this
Paragraph will not in any event extend the time within which BNPLC must remove
Liens Removable by BNPLC as required by Paragraph beyond the Designated Sale
Date.

20.     QUIET ENJOYMENT. Provided NAI pays the Base Rent and all Additional Rent
payable hereunder as and when due and payable and keeps and fulfills all of the
terms, covenants, agreements and conditions to be performed by NAI hereunder,
BNPLC shall not during the Term disturb NAI's peaceable and quiet enjoyment of
the Property; however, such enjoyment shall be subject to the terms, provisions,
covenants, agreements and conditions of this Land Lease, to Permitted
Encumbrances, to Development Documents and to any other claims not constituting
Liens Removable by BNPLC. If any Lien Removable by BNPLC is claimed against the
Property, BNPLC will remove the Lien Removable by BNPLC promptly. Any breach by
BNPLC of this Paragraph shall render BNPLC liable to NAI for any monetary
damages proximately caused thereby, but as more specifically provided in
subparagraph 4.(b) above, no such breach shall entitle NAI to terminate this
Land Lease or excuse NAI from its obligation to pay Rent.

21.     SURRENDER UPON TERMINATION. Unless NAI or an Applicable Purchaser
purchases or has purchased BNPLC's entire interest in the Property pursuant to
the terms of the Purchase Agreement and BNPLC's entire interest in the
Improvements and other "Property" under (and as defined in) the Other Purchase
Agreement, NAI shall, upon the termination of NAI's right to occupancy,
surrender to BNPLC the Property, including Improvements constructed by NAI and
fixtures and furnishings included in the Property, free of all Hazardous
Substances (including Permitted Hazardous Substances) and tenancies and with all
Improvements in substantially the same condition as of the date the same were
initially completed, excepting only (i) ordinary wear and tear that occurs
between the maintenance, repairs and replacements required by other provisions
of this Land Lease or the Other Lease Agreement, and (ii) demolition,
alterations and additions which are expressly permitted by the terms of this
Land Lease or the Other Lease Agreement and which have been completed by NAI in
a good and workmanlike manner in accordance with all Applicable Laws. Any
movable furniture or movable personal property belonging to NAI or any party
claiming under NAI, if not removed at the time of such termination and if BNPLC
shall so elect, shall be deemed abandoned and become the property of BNPLC
without any payment or offset therefor. If BNPLC shall not so elect, BNPLC may
remove such property from the Property and store it at NAI's risk and expense.

22.     HOLDING OVER BY NAI. Should NAI not purchase BNPLC's right, title and
interest in the Property as provided in the Purchase Agreement, but nonetheless
continue to hold the Property after the termination of this Land Lease without
BNPLC's consent, whether such termination occurs by lapse of time or otherwise,
such holding over shall constitute and be construed as a tenancy from day to day
only, at a daily Base Rent equal to: (i) Stipulated Loss Value on the day in
question, times (ii) the Default Rate for such day; divided by (iii) three
hundred and sixty; subject, however, to all of the terms, provisions, covenants
and agreements on the part of NAI hereunder. No payments of money by NAI to
BNPLC after the termination of this Land Lease shall reinstate, continue or
extend the Term of this Land Lease and no extension of this Land Lease after the
termination thereof shall be valid unless and until the same shall be reduced to
writing and signed by both BNPLC and NAI.

23.     INDEPENDENT OBLIGATIONS EVIDENCED BY THE OTHER OPERATIVE DOCUMENTS. NAI
acknowledges and agrees that nothing contained in this Land Lease shall limit,
modify or otherwise affect any of NAI's obligations under the other Operative
Documents, which obligations are intended to be separate, independent and in
addition to, and not in lieu of, the obligations set forth herein. In the event
of any inconsistency between the express terms and provisions of the Purchase
Documents and the express terms and provisions of this Land Lease, the express
terms and provisions of the Purchase Documents shall control. In the event of
any inconsistency between the express terms and provisions of the Closing
Certificate and the express terms and provisions of this Land Lease, the express
terms and provisions of this Land Lease shall control; provided, nothing herein
will limit or impair NAI's obligations under the Closing Certificate following
any expiration of termination of this Land Lease.


                                       25
<PAGE>   30
                          [The signature pages follow.]


                                       26
<PAGE>   31
        IN WITNESS WHEREOF, NAI and BNPLC have caused this Land Lease Agreement
to be executed as of May 3, 1999.



                                       "NAI"

                                       NETWORK APPLIANCE, INC.


                                       By:______________________________________
                                          Name:_________________________________
                                          Title:________________________________


                                       27
<PAGE>   32
[Continuation of signature pages to Lease Agreement dated to be effective May 3,
1999]



                                       "BNPLC"

                                       BNP LEASING CORPORATION


                                       By:______________________________________
                                          Lloyd G. Cox, Vice President





                                       28
<PAGE>   33
                                   Exhibit A

                                LEGAL DESCRIPTION

All that certain real property situate in the City of Sunnyvale, State of
California, described as follows:

PARCEL ONE

All of Parcel "A" as said Parcel is shown upon that certain Parcel Map entitled
"For: Moffett Park Association, being a Redivision of Parcel "B" of Parcel Map
recorded in Book 292 of Maps in Page 41", which Map was filed for record in the
Office of the Recorder of the County of Santa Clara, State of California, on
August 28, 1974 in Book 345 of Map, at Page 20.

PARCEL TWO

An Easement for pedestrian and motor vehicle Right-of-Way for the purpose of
ingress over a portion of land more particularly described as follows:

A 15 foot strip of land over a portion of "Parcel "A", as said Parcel "A" is
shown on that certain Parcel Map filed for record on October 25, 1966 in Book
216 of Maps, at Page 2, records of Santa Clara County, and being more
particularly described as follows:

Commencing at the Northeast corner of said Parcel "A", said Northeast corner
also being a point on the center line of Crossman Road (90.00 feet wide); thence
North 75 deg 07' 58" West along the Northerly line of said parcel "A", a
distance of 85.00 feet to the True Point of Beginning of this description;
thence continuing along said Northerly line North 75 deg 07' 58" West, a
distance of 322.50 feet; thence South 14 deg 52' 02" West, a distance of 15.00
feet; thence South 75 deg 07' 58" East parallel with and distance 15.00 feet
Southerly measured at right angles from the Northerly line of said Parcel "A" a
distance of 322.50 feet; thence North 14 deg 52' 02" East, a distance of 15.00
feet to the True Point of Beginning.


                                       1
<PAGE>   34
                                   Exhibit B

                             INSURANCE REQUIREMENTS


I.      LIABILITY INSURANCE:

A.      NAI must maintain commercial general liability ("CGL") insurance on an
occurrence basis, affording immediate protection to the limit of not less than
$20,000,000 combined single limit for bodily and personal injury, death and
property damage in respect of any one occurrence. The CGL insurance must be
primary to, and shall receive no contribution from, any insurance policies or
self-insurance programs otherwise afforded to or available to the Interested
Parties, collectively or individually. Further, the CGL insurance must include
blanket contractual liability coverage which insures contractual liability under
the indemnifications set forth in this Land Lease (though such coverage or the
amount thereof shall in no way limit such indemnifications).

B.      Any deductible or self-insured retention applicable to the CGL insurance
shall not exceed $1,000 at any time when NAI shall continue to have the right to
exercise any Issue 97-10 Election under (and as defined in) the Other Lease
Agreement, or shall have previously exercised an Issue 97-10 Election. After the
expiration of NAI's right to exercise any Issue 97-10 Election, and provided no
Issue 97-10 Election has been exercised by NAI, NAI may increase any deductible
or self-insured retention applicable to such insurance, but not to an amount in
excess of $500,000.

C.      The forms of insurance policies (including endorsements) used to provide
the CGL insurance required by this Land Lease, and the insurance company or
companies providing the CGL insurance, must be acceptable to BNPLC. BNPLC shall
have the right from time to time and at any time to review and approve such
policy forms (including endorsements) and the insurance company or companies
providing the insurance. Without limiting the generality of the foregoing, BNPLC
may reasonably require (and unless and until NAI is otherwise notified by BNPLC,
BNPLC does require) that such insurance be provided under forms and by companies
consistent with the following:

        (1)     Forms: CGL Insurance must be provided on Insurance Services
        Office ("ISO") forms CG 0001 1093 or CG 0001 0196 or equivalent
        substitute forms providing the same or greater coverage.

        (2)     Rating Requirements: Insurance must be provided through
        insurance or reinsurance companies rated by the A.M. Best Company of
        Oldwick, New Jersey as having a policyholder's rating of A or better and
        a reported financial information rating of X or better.

        (3)     Required Endorsements: CGL Insurance must be endorsed to provide
        or include:

                (a)     in any policy containing a general aggregate limit, ISO
        form amendment "Aggregate Limits of Insurance Per Location" CG 2504 1185
        or equivalent substitute form;

                (b)     a waiver of subrogation, using ISO form CG 2404 1093 or
        equivalent substitute form (and under the commercial umbrella, if any),
        in favor of "BNP Leasing Corporation and other Interested Parties (as
        defined in the Common Definitions and Provisions Agreement (Phase II -
        Land) between Network Appliance, Inc. and BNP Leasing Corporation dated
        May 3, 1999)";

                (c)     ISO additional insured form CG 2026 1185 or equivalent
        substitute form, without modification (and under the commercial
        umbrella, if any), designating as additional insureds "BNPLC and other
        Interested Parties, as defined in the Common Definitions and Provisions
        Agreement (Phase II - Land) between Network Appliance, Inc. and BNP
        Leasing Corporation dated May 3, 1999)"; and


                                       1
<PAGE>   35
                (d)     provisions entitling BNPLC to 30 days' notice from the
        insurer prior to any cancellation, nonrenewal or material modification
        to the CGL coverage.

        (4)     Other Insurance: Each policy to contain standard CGL "other
        insurance" wording, unmodified in any way that would make it excess over
        or contributory with the additional insured's own commercial general
        liability coverage.


II.     INTENTIONALLY DELETED.


III.    OTHER INSURANCE RELATED REQUIREMENTS:

        A.      BNPLC must be notified in writing immediately by NAI of claims
against NAI that might cause a reduction below seventy-five percent (75%) of any
aggregate limit of any policy.

        B.      Intentionally Deleted..

        C.      NAI's CGL insurance must be evidenced by ACORD form 25
"Certificate of Insurance" completed and interlineated in a manner satisfactory
to BNPLC to show compliance with the requirements of this Exhibit. Copies of
endorsements to the CGL insurance must be attached to such form.

        D.      Such evidence of required insurance must be delivered upon
execution of this Land Lease and new certificate or evidence of insurance must
be delivered no later than 10 days prior to expiration of existing policy.

        E.      NAI shall not cancel, fail to renew, or make or permit any
material reduction in any of the policies or certificates described in this
Exhibit without the prior written consent of BNPLC. The certificates (ACORD
forms 25) described in this Exhibit must contain the following express
provision:

"This is to certify that the policies of insurance described herein have been
issued to the insured Network Appliance, Inc. for whom this certificate is
executed and are in force at this time. In the event of cancellation,
non-renewal, or material reduction in coverage affecting the certificate holder,
at least sixty days prior notice shall be given to the certificate holder."

        F.      The limits of liability under the liability insurance required
by this Land Lease may be provided by a single policy of insurance or by a
combination of primary and umbrella policies, but in no event shall the total
limits of liability available for any one occurrence or accident be less than
those required by this Exhibit.

        G.      NAI shall provide copies, certified as complete and correct by
an authorized agent of the applicable insurer, of all insurance policies
required by this Exhibit within ten days after receipt of a request for such
copies from BNPLC.


                                       2
<PAGE>   36
                                   Exhibit C


                         NOTICE OF LIBOR PERIOD ELECTION


BNP Leasing Corporation
12201 Merit Drive
Suite 860
Dallas, Texas 75251
Attention: Lloyd G. Cox

        Re: Lease Agreement (Phase II - Improvements) and Lease Agreement (Phase
II - Land), both dated as of May 3, 1999, and both between Network Appliance,
Inc., as tenant, and BNP Leasing Corporation, as landlord

Gentlemen:

        Capitalized terms used in this letter are intended to have the meanings
assigned to them in the two Lease Agreements referenced above. This letter
constitutes notice to you that the LIBOR Period Election under both of the Lease
Agreements shall be:

                           ________________ month(s),

beginning with the first Base Rent Period that commences on or after:

                           ______________, ____.


NOTE: YOU SHALL BE ENTITLED TO DISREGARD THIS NOTICE IF THE NUMBER OF MONTHS
SPECIFIED ABOVE IS NOT A PERMITTED NUMBER UNDER THE DEFINITION OF "LIBOR PERIOD
ELECTION" IN THE COMMON DEFINITIONS AND PROVISIONS AGREEMENTS REFERENCED IN THE
LEASE AGREEMENTS, OR IF THE DATE SPECIFIED ABOVE CONCERNING THE COMMENCEMENT OF
THE LIBOR PERIOD ELECTION IS LESS THAN TEN BUSINESS DAYS AFTER YOUR RECEIPT OF
THIS NOTICE. HOWEVER, WE ASK THAT YOU NOTIFY US IMMEDIATELY IF FOR ANY REASON
YOU BELIEVE THIS NOTICE IS DEFECTIVE.

        Executed this _____ day of ______________, 19___.


                                       Network Appliance, Inc.

                                       Name:____________________________________
                                       Title:___________________________________
[cc all Participants]


                                       1

<PAGE>   37
                                   Schedule 1

                               FINANCIAL COVENANTS


        This Schedule 1 is attached to and made a part of (a) the Lease
Agreement (Phase II Improvements) (the "IMPROVEMENTS LEASE") dated to be
effective as of May 3, 1999 (the "EFFECTIVE DATE"), between BNP Leasing
Corporation, a Delaware corporation ("BNPLC") and Network Appliance, Inc., a
California corporation ("NAI"), (b) the Lease Agreement (Phase II - Land) (the
"LAND LEASE" and, together with the Improvements Lease, the "LEASES") dated to
be effective as of the Effective Date, between BNPLC and NAI, (c) the Pledge
Agreement (Phase II - Improvements) (the "PLEDGE AGREEMENT (IMPROVEMENTS)")
dated to be effective as of the Effective Date, among BNPLC, NAI, and Banque
Nationale de Paris, as a Participant and as agent for any financial institutions
that become Participants thereunder from time to time, and (d) the Pledge
Agreement (Phase II - Land) (collectively with the Pledge Agreement
(Improvements), the "PLEDGE AGREEMENTS") dated to be effective as of the
Effective Date, among BNPLC, NAI, and Banque Nationale de Paris, as a
Participant and as agent for any financial institutions that become Participants
thereunder from time to time.

                             PART I - DEFINED TERMS

        In this Schedule 1, capitalized terms used but not defined herein shall
have the meaning assigned to them in the Leases or the Common Definitions and
Provisions Agreements referenced in the Leases; and the following capitalized
terms shall have the following meanings:

"ADJUSTED NET INCOME" means, for any fiscal period of NAI, the aggregate net
income earned (or net losses incurred) during such period by NAI and its
Subsidiaries (determined on a consolidated basis), plus any Permitted Non-Cash
Charges deducted in determining such net income (or net loss).

"ADJUSTED EBIT" means, for any accounting period, net income (or net loss) of
NAI and its Subsidiaries (determined on a consolidated basis), plus the amounts
(if any) which, in the determination of net income (or net loss) for such
period, have been deducted for (a) interest expense, (b) income tax expense (c)
rent expense under leases of property, and (d) Permitted Non-Cash Charges.

"COLLATERAL TEST DATES" mean the Base Rent Commencement Date and the earlier of
the following dates after each fiscal quarter of NAI that ends after the Base
Rent Commencement Date : (1) the seventh Business Day after the release by NAI
of its financial statements for the fiscal quarter; or (2) the first Business
Day of the third calendar month following the end of the fiscal quarter.

"CONSOLIDATED TANGIBLE NET WORTH" means the excess of (1) the total assets,
other than Intangible Assets, of NAI and its Subsidiaries (determined on a
consolidated basis) over (2) the total liabilities of NAI and its Subsidiaries
(determined on a consolidated basis).

"DEBT" as used in this Exhibit shall have the meaning assigned to it in the
Common Definitions and Provisions Agreements, where "Debt" of any Person is
defined to mean (without duplication of any item): (a) indebtedness of such
Person for borrowed money; (b) indebtedness of such Person for the deferred
purchase price of property or services (except trade payables and accrued
expenses constituting current liabilities in the ordinary course of business);
(c) the face amount of any outstanding letters of credit issued for the account
of such Person; (d) obligations of such Person arising under acceptance
facilities; (e) guaranties, endorsements (other than for collection in the
ordinary course of business) and other contingent obligations of such Person to
purchase, to provide funds for payment, to provide funds to invest in any
Person, or otherwise to assure a creditor against loss; (f) obligations of
others secured by any Lien on property of such Person; (g) obligations of such
Person as lessee under Capital Leases; and (h) the obligations of such Person,
contingent or otherwise, under any lease of property or related documents
(including a separate purchase agreement) which provide that such Person or any
of its


                                       1
<PAGE>   38
Affiliates must purchase or cause another Person to purchase any interest
in the leased property and thereby guarantee a minimum residual value of the
leased property to the lessor. For purposes of this definition, the amount of
the obligations described in clause (h) of the preceding sentence with respect
to any lease classified according to GAAP as an "operating lease," shall equal
the sum of (1) the present value of rentals and other minimum lease payments
required in connection with such lease [calculated in accordance with SFAS 13
and other GAAP relevant to the determination of the whether such lease must be
accounted for as an operating lease or capital lease], plus (2) the fair value
of the property covered by the lease; provided, however, that such amount shall
not exceed the price, as of the date a determination of Debt is required
hereunder, for which the lessee can purchase the leased property pursuant to any
valid ongoing purchase option if, upon such a purchase, the lessee shall be
excused from paying rentals or other minimum lease payments that would otherwise
accrue after the purchase.

"FIXED CHARGES" means, for any accounting period, the sum (without duplication
of any item) of the following charges or costs incurred or paid by NAI and its
Subsidiaries (determined on a consolidated basis): (a) gross interest expense,
plus (b) amortization of principal or debt discount in respect of all Debt
during such period, plus (c) rent payable under all leases of property during
such period, plus (d) taxes payable during such period.

"INTANGIBLE ASSETS" means assets of NAI and its Subsidiaries (determined on a
consolidated basis) that are properly classified as "INTANGIBLE ASSETS" in
accordance with GAAP and, in any event, shall include goodwill, patents, trade
names, trademarks, copyrights, franchises, experimental expense, organization
expense, unamortized debt discount and expense, and deferred charges (other than
prepaid insurance, prepaid taxes and current deferred taxes to the extent any
such prepaid or deferred items are classified on the balance sheet of NAI and
its consolidated Subsidiaries as current assets in accordance with GAAP and with
the concurrence of NAI's independent public accountants).

"MANDATORY COLLATERAL PERIOD" means any period during which, notwithstanding any
contrary designation of a Collateral Percentage by NAI under the Pledge
Agreements, the Collateral Percentage for purposes of the Pledge Agreements
shall be one hundred percent (100%), determined as set forth in Part III of this
Schedule 1.

"PERMITTED NON-CASH CHARGES" means the amounts (if any) which, in the
determination of net income (or net loss) for any relevant fiscal period, have
been deducted by NAI or its Subsidiaries for non-cash charges made to write down
goodwill or research and development costs in connection with acquisitions
permitted by this Schedule 1.

"QUICK RATIO" means the ratio of:

                (A)     the sum (without duplication of any item) of the
        following assets of NAI and its Subsidiaries (determined on a
        consolidated basis): Collateral delivered and pledged under the Pledge
        Agreements in accordance with the requirements thereof (if any); plus
        unencumbered cash; plus unencumbered short term cash investments; plus
        other unencumbered marketable securities which are classified as short
        term investments in accordance with GAAP; plus unencumbered accounts
        receivable, computed net of reserves for uncollectible amounts as
        determined in accordance with GAAP, to

                (B)     the sum (without duplication of any item) of (1) all
        liabilities of NAI and its Subsidiaries (determined on a consolidated
        basis) treated as current liabilities in accordance with GAAP, plus (2)
        other obligations included in total Debt of NAI and its Subsidiaries
        (determined on a consolidated basis), the payment of which is due on
        demand or will become due within one year after the date on which the
        applicable determination of Quick Ratio is required hereunder.

"ROLLING FOUR QUARTER PERIOD" means a period of four consecutive fiscal quarters
of NAI, the last of which quarters ends after December 31, 1999.


                                       2
<PAGE>   39
                PART II - FINANCIAL COVENANTS FOR LEASE AGREEMENT

NAI covenants that it shall not at any time suffer or permit:

1.      Minimum Unencumbered Cash and Cash Equivalents. The sum (without
duplication of any item) of the unrestricted cash, Collateral delivered and
pledged under the Pledge Agreements in accordance with the requirements thereof
(if any), unencumbered short term cash investments and unencumbered marketable
securities classified as short term investments according to GAAP of NAI and its
Subsidiaries (determined on a consolidated basis) to be less than total Debt of
NAI and its Subsidiaries (determined on a consolidated basis).

2.      Minimum Tangible Net Worth. Consolidated Tangible Net Worth to be less
than the sum of: (a) ninety percent of the Consolidated Tangible Net Worth as of
October 30, 1998; plus (b) seventy-five percent of NAI's net income (computed
without deduction for net losses in any fiscal quarter) earned in each fiscal
quarter since October 30, 1998; plus (c) one-hundred percent of the net proceeds
of sales of stock in NAI or its Subsidiaries (other than sales to NAI or its
Subsidiaries) after October 30, 1998; less (d) Permitted Non-Cash Charges for
any period after October 30, 1998.

3.      Minimum Quick Ratio. The Quick Ratio to be less than 1.50 to 1.00.

4.      Minimum Fixed Charge Coverage. The ratio of (a) Adjusted EBIT for any
Rolling Four Quarter Period to (b) Fixed Charges for the same Rolling Four
Quarter Period, to be less than 1.50 to 1.00.

5.      Minimum Profitability. Adjusted Net Income to be less than $1.00 in more
than one fiscal quarter of any Rolling Four Quarter Period.

6.      Maximum Leverage Ratio. the ratio of (a) total Debt of NAI and its
Subsidiaries (determined on a consolidated basis) at the end of any Rolling Four
Quarter Period to (b) the Adjusted EBIT for the same Four Quarter Rolling
Period, to exceed 3.00 to 1.00.


                PART III - TESTS FOR MANDATORY COLLATERAL PERIODS

        The period commencing on any Collateral Test Date, and ending on the
next Collateral Test Date, shall constitute a Mandatory Collateral Period if, at
the end of the latest fiscal quarter of NAI ending before such period, NAI shall
have both:

        (A)     failed to maintain a ratio of (1) the sum (without duplication
of any item) of Collateral delivered and pledged under the Pledge Agreements in
accordance with the requirements thereof (if any), unencumbered cash,
unencumbered short term cash investments and unencumbered marketable securities
classified as short term investments according to GAAP of NAI and its
Subsidiaries (determined on a consolidated basis) to (2) all Debt of NAI and its
Subsidiaries (determined on a consolidated basis), of at least 1.25 to 1.00
through and including the end of the last quarter of NAI's fiscal year 2000, and
of at least 1.50 to 1.00 thereafter; and.

        (B)     failed to maintain a ratio of (i) all Debt of NAI and its
Subsidiaries (determined on a consolidated basis) to (ii) Consolidated Tangible
Net Worth of NAI, of no more than 0.45 to 1.00.


                            PART IV - OTHER COVENANTS

Without limiting NAI's obligations under the other provisions of the Operative
Documents, during the Term, NAI shall not, without the prior written consent of
BNPLC in each case:


                                       3
<PAGE>   40
A.      Liens. Create, incur, assume or suffer to exist, or permit any of its
Consolidated Subsidiaries to create, incur, assume or suffer to exist, any Lien,
upon or with respect to any of its properties, now owned or hereafter acquired,
provided that the following shall be permitted except to the extent that they
would encumber any interest in the Property in violation of other provisions of
the Operative Documents:

1.      Liens for taxes or assessments or other government charges or levies if
not yet due and payable or if they are being contested in good faith by
appropriate proceedings and for which appropriate reserves are maintained;

2.      Liens imposed by law, such as mechanic's, materialmen's, landlord's,
warehousemen's and carrier's Liens, and other similar Liens, securing
obligations incurred in the ordinary course of business which are not past due
for more than thirty (30) days, or which are being contested in good faith by
appropriate proceedings and for which appropriate reserves have been
established;

3.      Liens under workmen's compensation, unemployment insurance, social
security or similar laws (other than ERISA);

4.      Liens, deposits or pledges to secure the performance of bids, tenders,
contracts (other than contracts for the payment of money), leases, public or
statutory obligations, surety, stay, appeal, indemnity, performance or other
similar bonds, or other similar obligations arising in the ordinary course of
business;

5.      judgment and other similar Liens against assets other than the Property
or any part thereof in an aggregate amount not in excess of $3,000,000 arising
in connection with court proceedings; provided that the execution or other
enforcement of such Liens is effectively stayed and the claims secured thereby
are being actively contested in good faith by appropriate proceedings;

6.      easements, rights-of-way, restrictions and other similar encumbrances
which, in the aggregate, do not materially interfere with the occupation, use
and enjoyment by NAI or any such Consolidated Subsidiary of the property or
assets encumbered thereby in the normal course of its business or materially
impair the value of the property subject thereto;

7.      Liens securing obligations of such a Consolidated Subsidiary to NAI or
to another such Consolidated Subsidiary;

8.      Liens not otherwise permitted by this subparagraph (and not encumbering
the Property or any Collateral) incurred in connection with the incurrence of
additional Debt or asserted to secure Unfunded Benefit Liabilities, provided
that (a) the sum of the aggregate principal amount of all outstanding
obligations secured by Liens incurred pursuant to this clause shall not at any
time exceed five percent (5%) of Consolidated Tangible Net Worth at such time;
and (b) such Liens do not constitute Liens against NAI's interest in any
material Subsidiary or blanket Liens against all or substantially all of the
inventory, receivables, general intangibles or equipment of NAI or of any
material Subsidiary of NAI (for purposes of this clause, a "material Subsidiary"
means any subsidiary whose assets represent a substantial part of the total
assets of NAI and its Subsidiaries, determined on a consolidated basis in
accordance with GAAP); and

9.      Liens incurred in connection with any renewals, extensions or refundings
of any Debt secured by Liens described in the preceding clauses of this
subparagraph , provided that there is no increase in the aggregate principal
amount of Debt secured thereby from that which was outstanding as of the date of
such renewal, extension or refunding and no additional property is encumbered.

B.      Transactions with Affiliates. Enter into or permit any Subsidiary of NAI
to enter into any material transactions (including, without limitation, the
purchase, sale or exchange of property or the rendering of any service) with any
Affiliates of NAI except on terms (1) that would not cause or result in a
Default by NAI under the financial covenants set forth in Part II of this
Schedule, and (2) that are no less favorable to NAI or the relevant Subsidiary
than those that would have been obtained in a comparable transaction on an arm's
length basis from an unrelated Person.


                                       4
<PAGE>   41

C.      Compliance. Fail to preserve and maintain all licenses, permits,
governmental approvals, rights, privileges and franchises necessary for the
conduct of its business; or fail to comply with the provisions of all documents
pursuant to which NAI is organized and/or which govern NAI's continued existence
and with the requirements of all laws, rules, regulations and orders of a
governmental agency applicable to NAI and/or its business.

D.      Insurance. Fail to maintain and keep in force insurance of the types and
in amounts customarily carried in lines of business similar to that of NAI,
including but not limited to fire, extended coverage, public liability, flood,
property damage and workers' compensation, with all such insurance carried with
companies and in amounts satisfactory to BNPLC, or fail to deliver to BNPLC from
time to time at BNPLC's request schedules setting forth all insurance then in
effect.

E.      Facilities. fail to keep all properties useful or necessary to NAI's
business in good repair and condition, or to from time to time make necessary
repairs, renewals and replacements thereto so that such properties shall be
fully and efficiently preserved and maintained.

F.      Taxes and Other Liabilities. Fail to pay and discharge when due any and
all indebtedness, obligations, assessments and taxes, both real or personal,
including without limitation federal and state income taxes and state and local
property taxes and assessments, except (a) such as NAI may in good faith contest
or as to which a bona fide dispute may arise, and (b) for which NAI has made
provisions, to BNPLC's satisfaction, for eventual payment thereof in the event
that NAI is obligated to make such payment.

G.      Capital Expenditures. Make any additional investment in fixed assets in
any fiscal year in excess of an aggregate of $20,000,000.00.

H.      Merger, Consolidation, Transfer of Assets. Merge into or consolidate
with any other entity (unless NAI is the surviving entity and remains in
compliance of all provisions of the Operative Documents); or make any
substantial change in the nature of NAI's business as conducted as of the date
hereof; or sell, lease, transfer or otherwise dispose of all or a substantial or
material portion of NAI's assets except in the ordinary course of its business.

I.      Loans, Advances, Investments. Make any loans or advances to or
investments in any person or entity, except (a) any of the foregoing existing as
of, and disclosed to BNPLC prior to, the date hereof, (b) loans to employees for
travel advances, relocation loans and other loans in the ordinary course of
business, (c) investments in accordance with NAI's investment policy, as in
effect from time to time, (d) existing investments in subsidiaries and joint
ventures which have been disclosed to BNPLC in writing prior to the date hereof,
and new investments in subsidiaries and joint ventures in amounts up to an
aggregated of $10,000,000.00, (e) loans to employees, officers, directors to
finance or refinance the purchase of equity securities of NAI.

J.      Dividends, Distributions. Declare or pay any dividend or distribution
either in cash, stock or any other property on NAI's stock now or hereafter
outstanding, nor redeem, retire, repurchase or otherwise acquire any shares of
any class of NAI's stock now or hereafter outstanding.


                                       5
<PAGE>   42
                   COMMON DEFINITIONS AND PROVISIONS AGREEMENT


                                (PHASE II - LAND)





                                     BETWEEN






                             BNP LEASING CORPORATION


                                       AND


                             NETWORK APPLIANCE, INC.








                             DATED AS OF MAY 3, 1999


                                       1
<PAGE>   43
                                TABLE OF CONTENTS




                                                                                            Page
                                                                                            ----
                                                                                         

ARTICLE I - LIST OF DEFINED TERMS:

ACTIVE NEGLIGENCE ...........................................................................  1
ADDITIONAL RENT .............................................................................  1
ADJUSTED EBIT ...............................................................................  1
ADVANCE DATE ................................................................................  2
AFFILIATE ...................................................................................  2
APPLICABLE LAWS .............................................................................  2
APPLICABLE PURCHASER ........................................................................  2
ATTORNEYS' FEES .............................................................................  2
BANKING RULES CHANGE ........................................................................  2
BASE RATE ...................................................................................  2
BASE RENT ...................................................................................  2
BASE RENT COMMENCEMENT DATE..................................................................  2
BASE RENT DATE ..............................................................................  2
BASE RENT PERIOD ............................................................................  3
BNPLC .......................................................................................  4
BNPLC'S PARENT ..............................................................................  4
BREAKAGE COSTS ..............................................................................  4
BREAK EVEN PRICE ............................................................................  4
BUSINESS DAY ................................................................................  4
CAPITAL ADEQUACY CHARGES.....................................................................  4
CAPITAL LEASE ...............................................................................  4
CLOSING CERTIFICATE .........................................................................  5
CODE ........................................................................................  5
COLLATERAL ..................................................................................  5
COLLATERAL PERCENTAGE........................................................................  5
COMMON DEFINITIONS AND PROVISIONS AGREEMENT (PHASE II - LAND)................................  5
CONSTRUCTION MANAGEMENT AGREEMENT............................................................  5
CONSTRUCTION PROJECT ........................................................................  5
CURRENT AS IS MARKET VALUE...................................................................  5
DEBT ........................................................................................  6
DEFAULT .....................................................................................  6
DEFAULT RATE ................................................................................  7
DEFAULTING PARTICIPANT.......................................................................  7
DEPOSIT TAKER ...............................................................................  7
DEPOSIT TAKER LOSSES ........................................................................  7
DESIGNATED SALE DATE ........................................................................  7
DEVELOPMENT DOCUMENTS........................................................................  7
DIRECT PAYMENTS TO PARTICIPANTS..............................................................  8
EFFECTIVE DATE ..............................................................................  8
EFFECTIVE RATE ..............................................................................  8
ENVIRONMENTAL LAWS ..........................................................................  8



<PAGE>   44


                                                                                            Page
                                                                                            ----
                                                                                         

ENVIRONMENTAL CUTOFF DATE....................................................................  8
ENVIRONMENTAL LOSSES ........................................................................  8
ENVIRONMENTAL REPORTS........................................................................  9
ERISA .......................................................................................  9
ERISA AFFILIATE .............................................................................  9
ESCROWED PROCEEDS ...........................................................................  9
ESTABLISHED MISCONDUCT.......................................................................  9
EUROCURRENCY LIABILITIES..................................................................... 10
EURODOLLAR RATE RESERVE PERCENTAGE........................................................... 10
EVENT OF DEFAULT ............................................................................ 10
EXCLUDED TAXES .............................................................................. 10
EXISTING CONTRACT ........................................................................... 10
FAILED COLLATERAL TEST DATE.................................................................. 11
FED FUNDS RATE .............................................................................. 11
GAAP ........................................................................................ 11
HAZARDOUS SUBSTANCE ......................................................................... 11
HAZARDOUS SUBSTANCE ACTIVITY................................................................. 11
IMPOSITIONS ................................................................................. 12
IMPROVEMENTS ................................................................................ 12
INITIAL FUNDING ADVANCE...................................................................... 12
INTERESTED PARTY ............................................................................ 12
ISSUE 97-1 NON-PERFORMANCE-RELATED SUBJECTIVE EVENT OF DEFAULT............................... 12
LAND ........................................................................................ 13
LAND LEASE .................................................................................. 13
LIBOR ....................................................................................... 13
LIBOR PERIOD ELECTION........................................................................ 13
LIEN ........................................................................................ 14
LIENS REMOVABLE BY BNPLC..................................................................... 14
LOSSES ...................................................................................... 14
MANDATORY COLLATERAL PERIOD.................................................................. 15
MATERIAL ENVIRONMENTAL COMMUNICATION......................................................... 15
MAXIMUM REMARKETING OBLIGATION............................................................... 15
MINIMUM EXTENDED REMARKETING PRICE........................................................... 15
MULTIEMPLOYER PLAN .......................................................................... 15
NAI. ........................................................................................ 15
NAI'S EXTENDED REMARKETING PERIOD............................................................ 15
NAI'S EXTENDED REMARKETING RIGHT............................................................. 15
NAI'S INITIAL REMARKETING RIGHTS AND OBLIGATIONS............................................. 15
OPERATIVE DOCUMENTS ......................................................................... 15
OTHER COMMON DEFINITIONS AND PROVISIONS AGREEMENT............................................ 15
OTHER LEASE AGREEMENT........................................................................ 15
OTHER PURCHASE AGREEMENT..................................................................... 15
PARTICIPANT ................................................................................. 16
PARTICIPATION AGREEMENT...................................................................... 16
PBGC ........................................................................................ 16
PERMITTED ENCUMBRANCES....................................................................... 16
PERMITTED HAZARDOUS SUBSTANCE USE............................................................ 16



<PAGE>   45


                                                                                            Page
                                                                                            ----
                                                                                         

PERMITTED HAZARDOUS SUBSTANCES............................................................... 17
PERMITTED TRANSFER .......................................................................... 17
PERSON ...................................................................................... 17
PERSONAL PROPERTY ........................................................................... 17
PLAN ........................................................................................ 17
PLEDGE AGREEMENT ............................................................................ 17
PRIME RATE .................................................................................. 18
PROPERTY .................................................................................... 18
PURCHASE AGREEMENT .......................................................................... 18
PURCHASE DOCUMENTS .......................................................................... 18
PURCHASE OPTION ............................................................................. 18
QUALIFIED AFFILIATE ......................................................................... 18
QUALIFIED PREPAYMENTS........................................................................ 18
REAL PROPERTY ............................................................................... 19
REMEDIAL WORK ............................................................................... 19
RENT ........................................................................................ 19
RESIDUAL RISK PERCENTAGE..................................................................... 19
RESPONSIBLE FINANCIAL OFFICER................................................................ 19
SALE CLOSING DOCUMENTS....................................................................... 19
SECURED SPREAD .............................................................................. 19
SELLER ...................................................................................... 19
STIPULATED LOSS VALUE........................................................................ 19
SUBSIDIARY .................................................................................. 19
SUPPLEMENTAL PAYMENT ........................................................................ 20
TERM ........................................................................................ 20
THIRD PARTY PRICE ........................................................................... 20
THIRD PARTY SALE NOTICE...................................................................... 20
THIRD PARTY SALE PROPOSAL.................................................................... 20
THIRD PARTY TARGET PRICE..................................................................... 20
TRANSACTION EXPENSES ........................................................................ 20
UNFUNDED BENEFIT LIABILITIES................................................................. 20
UNSECURED SPREAD ............................................................................ 20
VOLUNTARY RETENTION OF THE PROPERTY.......................................................... 21


ARTICLE II - PROVISIONS USED IN COMMON:

1   NOTICES ................................................................................. 21
2   SEVERABILITY ............................................................................ 23
3   NO MERGER ............................................................................... 23
4   NO IMPLIED WAIVER ....................................................................... 23
5   ENTIRE AND ONLY AGREEMENTS............................................................... 24
6   BINDING EFFECT .......................................................................... 24
7   TIME IS OF THE ESSENCE................................................................... 24
8   GOVERNING LAW ........................................................................... 24
9   PARAGRAPH HEADINGS....................................................................... 24



<PAGE>   46


                                                                                            Page
                                                                                            ----
                                                                                         

10  NEGOTIATED DOCUMENTS..................................................................... 24
11  TERMS NOT EXPRESSLY DEFINED IN AN OPERATIVE DOCUMENT..................................... 24
12  OTHER TERMS AND REFERENCES............................................................... 24
13  EXECUTION IN COUNTERPARTS................................................................ 25
14  NOT A PARTNERSHIP, ETC................................................................... 25



<PAGE>   47
                  COMMON DEFINITIONS AND PROVISIONS AGREEMENT
                                (PHASE II - LAND)


        This Common Definitions and Provisions Agreement (Phase II - Land), by
and between BNP LEASING CORPORATION, a Delaware corporation ("BNPLC"), and
NETWORK APPLIANCE, INC., a California corporation ("NAI"), is dated as of May 3,
1999, the Effective Date.


                                    RECITALS

        Contemporaneously with the execution of this Common Definitions and
Provisions Agreement (Phase II - Improvements), NAI is executing the Closing
Certificate (as defined below) in favor of BNPLC, and BNPLC and NAI are
executing the Land Lease (as defined below) and the Purchase Agreement (as
defined below), both of which concern the Property (as defined below). Each of
the Closing Certificate, the Land Lease and the Purchase Agreement (together
with this Common Definitions and Provisions Agreement (Phase II - Land) and the
Pledge Agreement [as defined below], the "OPERATIVE DOCUMENTS") are intended to
create separate and independent obligations upon the parties thereto. However,
NAI and BNPLC intend that all of the Operative Documents share certain
consistent definitions and other miscellaneous provisions. To that end, the
parties are executing this Common Definitions and Provisions Agreement (Phase II
- Land) and incorporating it by reference into each of the other Operative
Documents.

                                   AGREEMENTS

                       ARTICLE I - LIST OF DEFINED TERMS

        UNLESS A CLEAR CONTRARY INTENTION APPEARS, THE FOLLOWING TERMS SHALL
HAVE THE RESPECTIVE INDICATED MEANINGS AS USED HEREIN AND IN THE OTHER OPERATIVE
DOCUMENTS:

        "ACTIVE NEGLIGENCE " of any Person (including BNPLC) means, and is
limited to, the negligent conduct on the Property (and not mere omissions) by
such Person or by others acting and authorized to act on such Person's behalf in
a manner that proximately causes actual bodily injury or property damage for
which NAI does not carry (and is not obligated by the Land Lease to carry)
insurance. "ACTIVE NEGLIGENCE" shall not include (1) any negligent failure of
BNPLC to act when the duty to act would not have been imposed but for BNPLC's
status as owner of the Land, the Improvements or any interest in any other
Property or as a party to the transactions described in the Land Lease or the
other Operative Documents or in the Other Lease Agreement or the Other Purchase
Agreement, (2) any negligent failure of any other Interested Party to act when
the duty to act would not have been imposed but for such party's contractual or
other relationship to BNPLC or participation or facilitation in any manner,
directly or indirectly, of the transactions described in the Land Lease or other
Operative Documents or in the Other Lease Agreement or Other Purchase Agreement,
or (3) the exercise in a lawful manner by BNPLC (or any party lawfully claiming
through or under BNPLC) of any right or remedy provided in or under the Land
Lease or the other Operative Documents or in the Other Lease Agreement or Other
Purchase Agreement.

        "ADDITIONAL RENT " shall have the meaning assigned to it in subparagraph
3.(d) of the Land Lease.


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 1


<PAGE>   48

        "ADJUSTED EBIT " shall have the meaning assigned to it in Part I of
Schedule 1 attached to the Land Lease and to the Pledge Agreement.

        "ADVANCE DATE " means the first Business Day of every calendar month,
beginning with the first Business Day in May, 1999 and continuing regularly
thereafter to and including the Base Rent Commencement Date.

        "AFFILIATE " of any Person means any other Person controlling,
controlled by or under common control with such Person. For purposes of this
definition, the term "control" when used with respect to any Person means the
power to direct the management of policies of such Person, directly or
indirectly, whether through the ownership of voting securities, by contract or
otherwise, and the terms "controlling" and "controlled" have meanings
correlative to the foregoing.

        "APPLICABLE LAWS " means any or all of the following, to the extent
applicable to NAI or the Property or the Land Lease or the other Operative
Documents: restrictive covenants; zoning ordinances and building codes; flood
disaster laws; health, safety and environmental laws and regulations; the
Americans with Disabilities Act and other laws pertaining to disabled persons;
and other laws, statutes, ordinances, rules, permits, regulations, orders,
determinations and court decisions.

        "APPLICABLE PURCHASER " means any third party designated by NAI to
purchase BNPLC's interest in the Property and in any Escrowed Proceeds as
provided in the Purchase Agreement.

        "ATTORNEYS' FEES " means the expenses and reasonable fees of counsel to
the parties incurring the same, excluding costs or expenses of in-house counsel
(whether or not accounted for as general overhead or administrative expenses),
but otherwise including printing, photostating, duplicating and other expenses,
air freight charges, and fees billed for law clerks, paralegals, librarians and
others not admitted to the bar but performing services under the supervision of
an attorney. Such terms shall also include all such fees and expenses incurred
with respect to appeals, arbitrations and bankruptcy proceedings, and whether or
not any manner of proceeding is brought with respect to the matter for which
such fees and expenses were incurred.

        "BANKING RULES CHANGE " means either: (1) the introduction of or any
change in any law or regulation applicable to BNPLC, BNPLC's Parent or any other
Participant, or in the generally accepted interpretation by the institutional
lending community of any such law or regulation, or in the interpretation of any
such law or regulation asserted by any regulator, court or other governmental
authority (other than any change by way of imposition or increase of reserve
requirements included in the Eurodollar Rate Reserve Percentage) or (2) the
compliance by BNPLC, BNPLC's Parent or any other Participant with any new
guideline or new request from any central bank or other governmental authority
(whether or not having the force of law).

        "BASE RATE " for any Base Rent Period means a rate equal to the higher
of (1) the Prime Rate in effect on the first day of such period, or (2) the rate
which is fifty basis points (50/100 of 1%) above the Fed Funds Rate for that
period.

        "BASE RENT " means the rent payable by NAI pursuant to subparagraph of
the Land Lease.

        "BASE RENT COMMENCEMENT DATE " shall mean the earlier of (1) the first
Business Day of July, 2000, or (2) the "Base Rent Commencement Date" under and
as defined in the Other Common Definitions and Provisions Agreement.

        "BASE RENT DATE " means a date upon which Base Rent must be paid under
the Land Lease, all of which dates shall be the first Business Day of a calendar
month. The first Base Rent Date shall be determined as follows:


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 2


<PAGE>   49
                a)      If a LIBOR Period Election of one month is in effect on
        the Base Rent Commencement Date, then the first Business Day of the
        first calendar month following the Base Rent Commencement Date shall be
        the first Base Rent Date.

                b)      If the LIBOR Period Election in effect on the Base Rent
        Commencement Date is three months or six months, then the first Business
        Day of the third calendar month following the Base Rent Commencement
        Date shall be the first Base Rent Date.

Each successive Base Rent Date after the first Base Rent Date shall be the first
Business Day of the first or third calendar month following the calendar month
which includes the preceding Base Rent Date, determined as follows:

                (1)     If a LIBOR Period Election of one month is in effect on
        a Base Rent Date, then the first Business Day of the first calendar
        month following such Base Rent Date shall be the next following Base
        Rent Date.

                (2)     If a LIBOR Period Election of three months or six months
        is in effect on a Base Rent Date, then the first Business Day of the
        third calendar month following such Base Rent Date shall be the next
        following Base Rent Date.

Thus, for example, if the Base Rent Commencement Date falls on the first
Business Day of September, 1999 and a LIBOR Period Election of two months
commences on the Base Rent Commencement Date, then the first Base Rent Date
shall be the first Business Day of November, 1999.

        "BASE RENT PERIOD " means a period for which Base Rent must be paid
under the Land Lease, each of which periods shall correspond to the LIBOR Period
Election for such period. The first Base Rent Period shall begin on and include
the Base Rent Commencement Date, and each successive Base Rent Period shall
begin on and include the Base Rent Date upon which the preceding Base Rent
Period ends. Each Base Rent Period, including the first Base Rent Period, shall
end on but not include the first or second Base Rent Date after the Base Rent
Date upon which such period began, determined as follows:

                (1)     If the LIBOR Period Election for a Base Rent Period is
        one month or three months, then such Base Rent Period shall end on the
        first Base Rent Date after the Base Rent Date upon which such period
        began.

                (2)     If the LIBOR Period Election for a Base Rent Period is
        six months, then such Base Rent Period shall end on the second Base Rent
        Date after the Base Rent Date upon which such period began.

The determination of Base Rent Periods can be illustrated by two examples:

                1)      If NAI makes a LIBOR Period Election of three months for
        a hypothetical Base Rent Period beginning on the first Business Day in
        January, 2001, then such Base Rent Period will end on but not include
        the first Base Rent Date after it begins; that is, such Base Rent Period
        will end on the first Business Day in April, 2001, the third calendar
        month after January, 2001.

                2)      If, however, NAI makes a LIBOR Period Election of six
        months for the hypothetical Base Rent Period beginning the first
        Business Day in January, 2001, then such Base Rent Period will end on
        but not include the second Base Rent Date after it begins; that is, the
        first Business Day in July, 2001.


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 3


<PAGE>   50
        "BNPLC " means BNP Leasing Corporation, a Delaware corporation.

        "BNPLC'S PARENT " means BNPLC's Affiliate, Banque Nationale de Paris, a
bank organized and existing under the laws of France and any successors of such
bank.

        "BREAKAGE COSTS " means any and all costs, losses or expenses incurred
or sustained by BNPLC's Parent (as a Participant or otherwise) or any other
Participant, for which BNPLC's Parent or the Participant shall request
reimbursement from BNPLC, because of the resulting liquidation or redeployment
of deposits or other funds:

                (1)     used to make or maintain the Initial Funding Advance
        upon application of a Qualified Prepayment or upon any sale of the
        Property pursuant to the Purchase Agreement, if such application or sale
        occurs on any day other than an Advance Date or the last day of a Base
        Rent Period; or

                (2)     used to make or maintain the Initial Funding Advance
        upon the acceleration of the end of any Base Rent Period pursuant
        subparagraph 3.(c)(ii) of the Land Lease.

Breakage Costs will include, for example, losses attributable to any decline in
LIBOR as of the effective date of any application described in the clause (1)
preceding, as compared to LIBOR used to determine the Effective Rate then in
effect. Each determination by BNPLC's Parent or the applicable Participant of
Breakage Costs shall, in the absence of clear and demonstrable error, be
conclusive and binding upon NAI.

        "BREAK EVEN PRICE " shall have the meaning assigned to it in
subparagraph 1(B)(1) of the Purchase Agreement.

        "BUSINESS DAY " means any day that is (1) not a Saturday, Sunday or day
on which commercial banks are generally closed or required to be closed in New
York City, New York or San Francisco, California, and (2) a day on which
dealings in deposits of dollars are transacted in the London interbank market;
provided that if such dealings are suspended indefinitely for any reason,
"Business Day" shall mean any day described in clause (1).

        "CAPITAL ADEQUACY CHARGES " means any additional amounts BNPLC's Parent
or any other Participant requests BNPLC to pay as compensation for an increase
in required capital as provided in subparagraph 5.(b)(ii) of the Land Lease.

        "CAPITAL LEASE " means any lease which has been or should be capitalized
on the books of the lessee in accordance with GAAP or for federal income tax
purposes.
        "CLOSING CERTIFICATE " means the Closing Certificate and Agreement dated
as of May 3, 1999 executed by NAI in favor of BNPLC, as such Closing Certificate
may be extended, supplemented, amended, restated or otherwise modified from time
to time in accordance with its terms.

        "CODE " means the Internal Revenue Code of 1986, as amended.

        "COLLATERAL " shall have the meaning assigned to it in the Pledge
Agreement.

        "COLLATERAL PERCENTAGE " for each Base Rent Period means the Collateral
Percentage for such period determined under (and as defined in) the Pledge
Agreement; provided, however, for purposes of the Land Lease, the Collateral
Percentage for any Base Rent Period shall not exceed a fraction; the numerator
of which fraction shall equal the value


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 4


<PAGE>   51
(determined as provided in the Pledge Agreement) of all Collateral (a) that is,
on the first day of such period, held by the Deposit Takers under (and as
defined in) the Pledge Agreement subject to a Qualifying Security Interest (as
defined below), (b) that is free from claims or security interests held or
asserted by any third party, and (c) that is not in excess of Stipulated Loss
Value; and the denominator of which fraction shall equal the Stipulated Loss
Value on the first day of such period. "QUALIFYING SECURITY INTEREST" means a
first priority perfected security interest under the Pledge Agreement.

        "COMMON DEFINITIONS AND PROVISIONS AGREEMENT (PHASE II - LAND) " means
this Agreement, which is incorporated by reference into each of the other
Operative Documents.

        "CONSTRUCTION MANAGEMENT AGREEMENT " means the Construction Management
Agreement dated as of May 3, 1999 between BNPLC and NAI, as such Management
Agreement may be extended, supplemented, amended, restated or otherwise modified
from time to time in accordance with its terms.

        "CONSTRUCTION PROJECT " means the new buildings or other substantial
Improvements to be constructed, or the alteration of existing Improvements, as
described generally in Exhibit B attached to the Construction Management
Agreement.

        "CURRENT AS IS MARKET VALUE " means an amount equal to the fair market
value of BNPLC's interest in the Property (or any applicable portion thereof),
AS IS, WHERE IS AND WITH ALL FAULTS on the date in question. Whenever a
determination of Current AS IS Market Value is required by the express terms of
any Operative Document, it will be determined accordance with the following
procedure unless BNPLC and NAI have otherwise agreed in writing upon a Current
AS IS Market Value at that time:

        (A)     BNPLC and NAI shall each, within ten days after written notice
                from either to the other, select an appraiser. If either BNPLC
                or NAI fails to select an appraiser within the required period,
                then the appraiser who has been timely selected shall
                conclusively determine the fair market value of the Property (or
                applicable portion thereof) in accordance with this definition
                within forty-five days after his or her selection.

        (B)     Upon the selection of the two appraisers as provided above, such
                appraisers shall proceed to determine the fair market value of
                BNPLC's interest in the Property (or applicable portion thereof)
                in accordance with this clause (v). Such appraisals shall be
                submitted in writing no later than forty-five days after
                selection of the second appraiser. If the fair market value as
                determined by such appraisers is identical, such sum shall be
                Current AS IS Market Value. If the fair market value indicated
                by the lower appraisal differs from the fair market value
                indicated by the higher appraisal by less than five percent (5%)
                of the fair market value indicated by the higher appraisal, then
                Current AS IS Market Value shall be the sum of the two appraisal
                figures divided by two (2). If either appraiser fails to timely
                submit his or her appraisal, the timely submitted appraisal
                shall be determinative of Current AS IS Market Value.

        (C)     If the fair market value indicated by the lower appraisal
                differs from the fair market value indicated by the higher
                appraisal by more than five percent (5%) of the fair market
                value indicated by the higher appraisal, then the two appraisers
                previously selected shall select a third appraiser. The name of
                such appraiser shall be submitted at the same time the written
                appraisals are due. Such third appraiser shall then review the
                previously submitted appraisals and select the one that, in his
                professional opinion, more closely reflects the fair market
                value of BNPLC's interest in the Property (or applicable portion
                thereof), such selection to be submitted in writing no later
                than ten days after selection of the third appraiser. Such
                selection shall be determinative of Current AS IS Market Value.



     Common Definitions and Provisions Agreement (Phase II - Land) - Page 5


<PAGE>   52
        (D)     In making any such determination of fair market value, the
                appraisers shall assume that any improvements then located on
                the Property (or applicable portion thereof) or under
                construction thereon constitute the highest and best use, and
                that neither the Land Lease nor the Purchase Agreement add any
                value to the Property. Each appraiser selected hereunder shall
                be an independent MAI-designated appraiser with not less than
                ten years' experience in commercial real estate appraisal in
                Sunnyvale, California and surrounding areas.

        "DEBT " of any Person means (without duplication of any item): (a)
indebtedness of such Person for borrowed money; (b) indebtedness of such Person
for the deferred purchase price of property or services (except trade payables
and accrued expenses constituting current liabilities in the ordinary course of
business); (c) the face amount of any outstanding letters of credit issued for
the account of such Person; (d) obligations of such Person arising under
acceptance facilities; (e) guaranties, endorsements (other than for collection
in the ordinary course of business) and other contingent obligations of such
Person to purchase, to provide funds for payment, to provide funds to invest in
any Person, or otherwise to assure a creditor against loss; (f) obligations of
others secured by any Lien on property of such Person; (g) obligations of such
Person as lessee under Capital Leases; and (h) the obligations of such Person,
contingent or otherwise, under any lease of property or related documents
(including a separate purchase agreement) which provide that such Person or any
of its Affiliates must purchase or cause another Person to purchase any interest
in the leased property and thereby guarantee a minimum residual value of the
leased property to the lessor. For purposes of this definition, the amount of
the obligations described in clause (h) of the preceding sentence with respect
to any lease classified according to GAAP as an "operating lease," shall equal
the sum of (1) the present value of rentals and other minimum lease payments
required in connection with such lease [calculated in accordance with SFAS 13
and other GAAP relevant to the determination of the whether such lease must be
accounted for as an operating lease or capital lease], plus (2) the fair value
of the property covered by the lease; provided, however, that such amount shall
not exceed the price, as of the date a determination of Debt is required
hereunder, for which the lessee can purchase the leased property pursuant to any
valid ongoing purchase option if, upon such a purchase, the lessee shall be
excused from paying rentals or other minimum lease payments that would otherwise
accrue after the purchase.

        "DEFAULT " means any event which, with the passage of time or the giving
of notice or both, would (if not cured within any applicable cure period)
constitute an Event of Default.

        "DEFAULT RATE " means, for any period prior to the Designated Sale Date,
a floating per annum rate equal to two percent (2%) above the Prime Rate, and
for any period commencing on or after the Designated Sale Date, Default Rate
shall mean a floating per annum rate equal to five percent (5%) above the Prime
Rate. However, in no event will the "Default Rate" at any time exceed the
maximum interest rate permitted by law.

        "DEFAULTING PARTICIPANT " shall have the meaning assigned to it in
Section 1 of the Participation Agreement.

        "DEPOSIT TAKER " shall have the meaning assigned to it in the Pledge
Agreement.

        "DEPOSIT TAKER LOSSES " shall have the meaning assigned to it in the
Pledge Agreement.

        "DESIGNATED SALE DATE " means the earlier of:

                (1)     the first Business Day of May, 2004; or


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 6


<PAGE>   53
                (2)     any Business Day designated as such in an irrevocable,
        unconditional notice given by NAI to BNPLC; provided, that to be
        effective for purposes of this definition, any such notice from NAI to
        BNPLC must designate a Business Day that is more than thirty days after
        the date of such notice; and provided, further, to be effective for
        purposes of this definition, the notice must include an express,
        unconditional, unequivocal and irrevocable acknowledgment by NAI that
        because of NAI's election to accelerate the Designated Sale Date, the
        Maximum Remarketing Obligation will equal the Break Even Price under the
        Purchase Agreement; or

                (3)     any Business Day designated as such in a notice given by
        BNPLC to NAI after the effective date of any termination of the
        Construction Management Agreement as provided in subparagraphs 5(D) or
        5(E) thereof; provided, that to be effective for purposes of this
        definition, any such notice from BNPLC to NAI must designate a Business
        Day that is more than thirty days after the date of such notice; or

                (4)     [Intentionally Deleted]; or

                (5)     any Business Day designated as such in a notice given by
        BNPLC to NAI when any Event of Default has occurred and is continuing;
        provided, that to be effective for purposes of this definition, any such
        notice from BNPLC to NAI must designate a Business Day that is more than
        thirty days after the date of such notice.

        "DEVELOPMENT DOCUMENTS " means the contracts, ordinances and other
documents described in Exhibit C attached to the Closing Certificate, as the
same may be modified from time to time in accordance with the Land Lease and the
Closing Certificate, and any applications, permits or certificates concerning or
affecting the use or development of the Property that may be submitted, issued
or executed from time to time as contemplated in such contracts, ordinances and
other documents or that BNPLC may hereafter execute, approve or consent to at
the request of NAI.

        "DIRECT PAYMENTS TO PARTICIPANTS " means the amounts paid or required to
be paid directly to Participants on the Designated Sale Date as provided in
Section 6.2 of the Pledge Agreement at the direction of and for NAI by the
collateral agent appointed pursuant to the Pledge Agreement from all or any part
of the Collateral described therein.

        "EFFECTIVE DATE " means May 3, 1999.

        "EFFECTIVE RATE " means for each Base Rent Period, the per annum rate
determined by dividing (A) LIBOR for such Base Rent Period, as the case may be,
by (B) one hundred percent (100%) minus the Eurodollar Rate Reserve Percentage
for such Base Rent Period. If LIBOR or the Eurodollar Rate Reserve Percentage
changes from Base Rent Period to Base Rent Period, then the Effective Rate shall
be automatically increased or decreased as of the date of such change, as the
case may be, without prior notice to NAI. If for any reason BNPLC determines
that it is impossible or unreasonably difficult to determine the Effective Rate
with respect to a given Base Rent Period in accordance with the foregoing, then
the "EFFECTIVE RATE" for that Base Rent Period shall equal any published index
or per annum interest rate determined in good faith by BNPLC's Parent to be
comparable to LIBOR at the beginning of the first day of that period. A
comparable interest rate might be, for example, the then existing yield on short
term United States Treasury obligations (as compiled by and published in the
then most recently published United States Federal Reserve Statistical Release
H.15(519) or its successor publication), plus or minus a fixed adjustment based
on BNPLC's Parent's comparison of past eurodollar market rates to past yields on
such Treasury obligations. Any determination by BNPLC of the Effective Rate
under this definition shall, in the absence of clear and demonstrable error, be
conclusive and binding upon NAI.


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 7


<PAGE>   54
        "ENVIRONMENTAL LAWS " means any and all existing and future Applicable
Laws pertaining to safety, health or the environment, or to Hazardous Substances
or Hazardous Substance Activities, including the Comprehensive Environmental
Response, Compensation, and Liability Act of 1980, as amended by the Superfund
Amendments and Reauthorization Act of 1986 (as amended, "CERCLA"), and the
Resource Conservation and Recovery Act of 1976, as amended by the Used Oil
Recycling Act of 1980, the Solid Waste Disposal Act Amendments of 1980, and the
Hazardous and Solid Waste Amendments of 1984 (as amended, "RCRA").

        "ENVIRONMENTAL CUTOFF DATE " means the later of the dates upon which (i)
the Land Lease terminates, or (ii) NAI surrenders possession and control of the
Property and ceases to have interest in the Land or Improvements or rights with
respect thereto under any of the Operative Documents.

        "ENVIRONMENTAL LOSSES " means Losses suffered or incurred by BNPLC or
any other Interested Party, directly or indirectly, relating to or arising out
of, based on or as a result of any of the following: (i) any Hazardous Substance
Activity on or prior to the Environmental Cutoff Date; (ii) any violation on or
prior to the Environmental Cutoff Date of any applicable Environmental Laws
relating to the Property or to the ownership, use, occupancy or operation
thereof; (iii) any investigation, inquiry, order, hearing, action, or other
proceeding by or before any governmental or quasi-governmental agency or
authority in connection with any Hazardous Substance Activity that occurs or is
alleged to have occurred on or prior to the Environmental Cutoff Date; or (iv)
any claim, demand, cause of action or investigation, or any action or other
proceeding, whether meritorious or not, brought or asserted against any
Interested Party which directly or indirectly relates to, arises from, is based
on, or results from any of the matters described in clauses (i), (ii), or (iii)
of this definition or any allegation of any such matters. For purposes of
determining whether Losses constitute "Environmental Losses," as the term is
used in the Land Lease, any actual or alleged Hazardous Substance Activity or
violation of Environmental Laws relating to the Property will be presumed to
have occurred prior to the Environmental Cutoff Date unless NAI establishes by
clear and convincing evidence to the contrary that the relevant Hazardous
Substance Activity or violation of Environmental Laws did not occur or commence
prior to the Environmental Cutoff Date.

        "ENVIRONMENTAL REPORTS " means collectively the following reports
(whether one or more), which were provided by NAI to BNPLC prior to the
Effective Date: Phase I dated March 1997 by Hygeienetics Environmental Services,
Inc.; Phase I dated June 1998 by Dames & Moore; and, an Asbestos Containing
Material Survey conducted in 1989 by Vesar, Inc.

        "ERISA " means the Employee Retirement Income Security Act of 1974, as
amended from time to time, together with all rules and regulations promulgated
with respect thereto.

        "ERISA AFFILIATE " means any Person who for purposes of Title IV of
ERISA is a member of NAI's controlled group, or under common control with NAI,
within the meaning of Section 414 of the Internal Revenue Code, and the
regulations promulgated and rulings issued thereunder.

        "ESCROWED PROCEEDS " means, subject to the exclusions specified in the
next sentence, any money that is received by BNPLC from time to time during the
Term (and any interest earned thereon) from any party (1) under any property
insurance policy as a result of damage to the Property, (2) as compensation for
any restriction imposed by any governmental authority upon the use or
development of the Property or for the condemnation of the Property or any
portion thereof, (3) because of any judgment, decree or award for physical
damage to the Property or (4) as compensation under any title insurance policy
or otherwise as a result of any title defect or claimed title defect with
respect to the Property; provided, however, in determining the amount of
"Escrowed Proceeds" there shall be deducted all expenses and costs of every
type, kind and nature (including Attorneys' Fees) incurred by BNPLC to collect
such proceeds. Notwithstanding the foregoing,


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 8


<PAGE>   55
"Escrowed Proceeds" will not include (A) any payment to BNPLC by a Participant
or an Affiliate of BNPLC that is made to compensate BNPLC for the Participant's
or Affiliate's share of any Losses BNPLC may incur as a result of any of the
events described in the preceding clauses (1) through (4), (B) any money or
proceeds that have been applied as a Qualified Prepayment or to pay any Breakage
Costs or other costs incurred in connection with a Qualified Prepayment, (C) any
money or proceeds that, after no less than ten days notice to NAI, BNPLC returns
or pays to a third party because of BNPLC's good faith belief that such return
or payment is required by law, (D) any money or proceeds paid by BNPLC to NAI or
offset against any amount owed by NAI, or (E) any money or proceeds used by
BNPLC in accordance with the Land Lease for repairs or the restoration of the
Property or to obtain development rights or the release of restrictions that
will inure to the benefit of future owners or occupants of the Property. Until
Escrowed Proceeds are paid to NAI pursuant to Paragraph of the Land Lease,
transferred to a purchaser under the Purchase Agreement as therein provided or
applied as a Qualified Prepayment or as otherwise described in the preceding
sentence, BNPLC shall keep the same deposited in one or more interest bearing
accounts, and all interest earned on such account shall be added to and made a
part of Escrowed Proceeds.

        "ESTABLISHED MISCONDUCT " of a Person means, and is limited to: (1) if
the Person is bound by the Operative Documents or the Participation Agreement, a
breach by such Person of the express provisions of the Operative Documents or
the Participation Agreement, as applicable, that continues beyond any period for
cure provided therein, and (2) conduct of such Person or its Affiliates that has
been determined to constitute wilful misconduct or Active Negligence in or as a
necessary element of a final judgment rendered against such Person by a court
with jurisdiction to make such determination. Established Misconduct of one
Interested Party shall not be attributed to a second Interested Party unless the
second Interested Party is an Affiliate of the first. Negligence which does not
constitute Active Negligence shall not in any event constitute Established
Misconduct. For purposes of this definition, "conduct of a Person" will include
(1) the conduct of an employee of that Person, but only to the extent that the
employee is acting within the scope of his employment by that Person, as
determined in or as a necessary element of a final judgment rendered against
such Person by a court with jurisdiction to make such determination, and (2) the
conduct of an agent of that Person (such as an independent environmental
consultant engaged by that Person), but only to the extent that the agent is, as
determined in or as a necessary element of a final judgment rendered against
such Person by a court with jurisdiction to make such determination, (x) acting
within the scope of the authority granted to him by such Person, (y) not acting
with the consent or approval of or under the direction of NAI or NAI's
Affiliates, employees or agents, and (z) not acting in good faith to mitigate
Losses that such Person may suffer because of a breach or repudiation by NAI of
the Land Lease or the Purchase Documents.

        "EUROCURRENCY LIABILITIES " shall have the meaning assigned to it in
Regulation D of the Board of Governors of the Federal Reserve System, as in
effect from time to time.

        "EURODOLLAR RATE RESERVE PERCENTAGE " means, for purposes of determining
the Effective Rate for any Base Rent Period, the reserve percentage applicable
two Business Days before the first day of such period under regulations issued
from time to time by the Board of Governors of the Federal Reserve System (or
any successor) for determining the maximum reserve requirement (including any
emergency, supplemental or other marginal reserve requirement) for BNPLC's
Parent with respect to liabilities or deposits consisting of or including
Eurocurrency Liabilities (or with respect to any other category or liabilities
by reference to which LIBOR is determined) having a term comparable to such
period.

        "EVENT OF DEFAULT " shall have the meaning assigned to it in
subparagraph 17 of the Land Lease.

        "EXCLUDED TAXES " means (1) all federal, state and local income taxes
upon Base Rent, any interest paid to BNPLC or any Participant pursuant to
subparagraph 3.(j) of the Land Lease, and any additional compensation claimed by
BNPLC pursuant to subparagraph 5.(b)(ii) of the Land Lease; (2) any transfer or
change of ownership taxes assessed because of BNPLC's


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 9


<PAGE>   56
transfer or conveyance to any third party of any rights or interest in the Land
Lease, the Purchase Agreement or the Property (other than any such taxes
assessed because of any Permitted Transfer under clauses (1), (3), (4), (5), (6)
or (7) of the definition of Permitted Transfer in this Agreement), (3) all
federal, state and local income taxes upon any amounts paid as reimbursement for
or to satisfy Losses incurred by BNPLC or any Participant to the extent such
taxes are offset by a corresponding reduction of BNPLC's or the applicable
Participant's income taxes because of BNPLC's or such Participant's deduction of
the reimbursed Losses from its taxable income or because of any tax credits
attributable thereto. If, however, a change in Applicable Laws after the
Effective Date results in an increase in such taxes for any reason other than an
increase in the applicable tax rates (e.g., a disallowance of deductions that
would otherwise be available against payments described in clause (A) of this
definition), then for purposes of the Operative Documents, the term "Excluded
Taxes" will not include the increase in such taxes attributable to the change.

        "EXISTING CONTRACT " means the Purchase and Sale Agreement dated July
31, 1998, between Seller and NAI covering the Land described in Exhibit A
attached to the Land Lease, as amended by a First Amendment to Purchase and Sale
Agreement dated as of December 9, 1999, the interests of NAI therein having
being assigned to BNPLC pursuant to the assignment dated as of May 3, 1999
between NAI and BNPLC, with the consent and approval of Seller.

        "FAILED COLLATERAL TEST DATE " means any date upon which commences a
Mandatory Collateral Period as described in Part III of Schedule 1 attached to
the Land Lease.

        "FED FUNDS RATE " means, for any period, a fluctuating interest rate
(expressed as a per annum rate and rounded upwards, if necessary, to the next
1/16 of 1%) equal for each day during such period to the weighted average of the
rates on overnight Federal funds transactions with members of the Federal
Reserve System arranged by Federal funds brokers, as published for such day (or,
if such day is not a Business Day, for the next preceding Business Day) by the
Federal Reserve Bank of New York, or, if such rates are not so published for any
day which is a Business Day, the average of the quotations for such day on such
transactions received by BNPLC's Parent from three Federal funds brokers of
recognized standing selected by BNPLC's Parent. All determinations of the Fed
Funds Rate by BNPLC's Parent shall, in the absence of clear and demonstrable
error, be binding and conclusive upon NAI.

        "GAAP " means generally accepted accounting principles in the United
States of America as in effect from time to time, applied on a basis consistent
with those used in the preparation of the financial statements referred to in
subparagraph 13.(a) of the Land Lease (except for changes with which NAI's
independent public accountants concur).

        "HAZARDOUS SUBSTANCE " means (i) any chemical, compound, material,
mixture or substance that is now or hereafter defined or listed in, regulated
under, or otherwise classified pursuant to, any Environmental Laws as a
"hazardous substance," "hazardous material," "hazardous waste," "extremely
hazardous waste or substance," "infectious waste," "toxic substance," "toxic
pollutant," or any other formulation intended to define, list or classify
substances by reason of deleterious properties, including ignitability,
corrosiveness, reactivity, carcinogenicity, toxicity or reproductive toxicity;
(ii) petroleum, any fraction of petroleum, natural gas, natural gas liquids,
liquified natural gas, synthetic gas usable for fuel (or mixtures of natural gas
and such synthetic gas), and ash produced by a resource recovery facility
utilizing a municipal solid waste stream, and drilling fluids, produced waters
and other wastes associated with the exploration, development or production of
crude oil, natural gas or geothermal resources; (iii) asbestos and any asbestos
containing material; and (v) any other material that, because of its quantity,
concentration or physical or chemical characteristics, poses a significant
present or potential hazard to human health or safety or to the environment if
released into the workplace or the environment.


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 10


<PAGE>   57
        "HAZARDOUS SUBSTANCE ACTIVITY " means any actual, proposed or threatened
use, storage, holding, release (including any spilling, leaking, leaching,
pumping, pouring, emitting, emptying, dumping, disposing into the environment,
and the continuing migration into or through soil, surface water, groundwater or
any body of water), discharge, deposit, placement, generation, processing,
construction, treatment, abatement, removal, disposal, disposition, handling or
transportation of any Hazardous Substance from, under, in, into or on the
Property, including the movement or migration of any Hazardous Substance from
surrounding property, surface water, groundwater or any body of water under, in,
into or onto the Property and any resulting residual Hazardous Substance
contamination in, on or under the Property. "HAZARDOUS SUBSTANCE ACTIVITY" also
means any existence of Hazardous Substances on the Property that would cause the
Property or the owner or operator thereof to be in violation of, or that would
subject the Property to any remedial obligations under, any Environmental Laws,
including CERCLA and RCRA, assuming disclosure to the applicable governmental
authorities of all relevant facts, conditions and circumstances pertaining to
the Property.

        "IMPOSITIONS " means all sales, excise, ad valorem, gross receipts,
business, transfer, stamp, occupancy, rental and other taxes, levies, fees,
charges, surcharges, assessments or penalties which arise out of or are
attributable to the Land Lease or which are imposed upon BNPLC or the Property
because of the ownership, leasing, occupancy, sale or operation of the Property,
or any part thereof or interest therein, or relating to or required to be paid
by any of the Permitted Encumbrances or the Development Documents, excluding
only Excluded Taxes. "IMPOSITIONS" shall include real estate taxes imposed
because of a change of use or ownership of the Property on or prior to the date
of any sale by BNPLC pursuant to the Purchase Agreement.

        "IMPROVEMENTS " means any and all (1) buildings and other real property
improvements now or hereafter erected on the Land, and (2) equipment (e.g., HVAC
systems, elevators and plumbing fixtures) attached to the buildings or other
real property improvements, the removal of which would cause structural or other
material damage to the buildings or other real property improvements or would
materially and adversely affect the value or use of the buildings or other real
property improvements.

        "INITIAL FUNDING ADVANCE " means the advance made by BNPLC's Parent
(directly or through one or more of its Affiliates) to or on behalf of BNPLC on
or prior to the Effective Date to cover the cost of BNPLC's acquisition of the
Property and certain Transaction Expenses and other amounts described in this
definition. The amount of the Initial Funding Advance may be confirmed by a
separate closing certificate executed by NAI as of the Effective Date. To the
extent that BNPLC does not itself use the entire Initial Funding Advance to pay
Transaction Expenses incurred by BNPLC, the remainder thereof will be advanced
to NAI, with the understanding that NAI shall use any such amount advanced for
one or more of the following purposes: (1) the payment or reimbursement of
Transaction Expenses incurred by NAI; (2) the maintenance of the Property; or
(3) the payment of Rents next due.

        "INTERESTED PARTY " means each of (1) BNPLC, its Affiliates and its
successors and assigns as to the Property or any part thereof or any interest
therein, (2) BNPLC's Parent, and (3) any other Participants and their permitted
successors and assigns under the Participation Agreement; provided, however,
none of the following shall constitute an Interested Party: (a) any Person to
whom BNPLC may transfer an interest in the Property by a conveyance that is not
a Permitted Transfer and others that cannot lawfully claim an interest in the
Property except through or under such a transfer by BNPLC, (b) NAI or any Person
that cannot lawfully claim an interest in the Property except through or under a
conveyance from NAI, or (c) any Applicable Purchaser under the Purchase
Agreement and any Person that cannot lawfully claim an interest in the Property
except through or under a conveyance from such Applicable Purchaser.


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 11


<PAGE>   58

        "ISSUE 97-1 NON-PERFORMANCE-RELATED SUBJECTIVE EVENT OF DEFAULT " means
an Event of Default that is unrelated to the Property or the use or maintenance
thereof and that results solely from (A) a breach by NAI of a provision in any
Operative Document, the occurrence of which breach cannot be objectively
determined, or (B) any other event described in subparagraph 17.(e) of the Land
Lease, the occurrence of which event cannot be objectively determined. For
example, an Event of Default under subparagraph 17.(e) of the Land Lease
resulting solely from a failure of NAI to "generally" pay its debts as such
debts become due (in contrast to a failure of NAI to pay Rent to BNPLC as it
becomes due under the Land Lease) would constitute an Issue 97-1
Non-performance-related Subjective Event of Default. In no event, however, will
the term "Issue 97-1 Non-performance-related Subjective Event of Default"
include an Event of Default resulting from (1) a failure of NAI to make any
payment required to BNPLC under the Operative Documents, (2) a breach by NAI of
the provisions set forth in Schedule 1 attached to the Land Lease (which set
forth financial covenants), (3) any failure of NAI to use, maintain and insure
the Property in accordance with the requirements of the Land Lease, or (4) any
failure of NAI to pay the full amount of any Supplemental Payment on the
Designated Sale Date as required by the Purchase Agreement. Except as provided
in subparagraph 1(A)(2)(c)(i) of the Purchase Agreement, the characterization of
any Event of Default as an Issue 97-1 Non-performance-related Subjective Event
of Default will not affect the rights or remedies available to BNPLC because of
the Event of Default.

        "LAND " means the land covered by the land described in Exhibit A
attached to the Closing Certificate, the Land Lease and the Purchase Agreement.

        "LAND LEASE " means the Lease Agreement (Phase II - Land") dated as of
May 3, 1999 between BNPLC, as landlord, and NAI, as tenant, pursuant to which
NAI has agreed to lease BNPLC's interest in the Property, as such Lease
Agreement may be extended, supplemented, amended, restated or otherwise modified
from time to time in accordance with its terms.

        "LIBOR " means, for purposes of determining the Effective Rate for each
Base Rent Period, the rate determined by BNPLC's Parent to be the average rate
of interest per annum (rounded upwards, if necessary, to the next 1/16 of 1%) of
the rates at which deposits of dollars are offered or available to BNPLC's
Parent in the London interbank market at approximately 11:00 a.m. (London time)
on the second Business Day preceding the first day of such period. BNPLC shall
instruct BNPLC's Parent to consider deposits, for purposes of making the
determination described in the preceding sentence, that are offered: (i) for
delivery on the first day of such Base Rent Period, as the case may be, (ii) in
an amount equal or comparable to the total (projected on the applicable date of
determination by BNPLC's Parent) Stipulated Loss Value on the first day of such
period, and (iii) for a time equal or comparable to the length of such period.
If BNPLC's Parent so chooses, it may determine LIBOR for any period by reference
to the rate reported by the British Banker's Association on Page 3750 of the
Telerate Service at approximately 11:00 a.m. (London time) on the second
Business Day preceding the first day of such period. If for any reason BNPLC's
Parent determines that it is impossible or unreasonably difficult to determine
LIBOR with respect to a given Base Rent Period in accordance with the foregoing,
or if BNPLC's Parent shall determine that it is unlawful (or any central bank or
governmental authority shall assert that it is unlawful) for BNPLC, BNPLC's
Parent or any Participant to provide or maintain the Initial Funding Advance
during any Base Rent Period for which Base Rent is computed by reference to
LIBOR, then "LIBOR" for that period shall equal the Base Rate for that period.
All determinations of LIBOR by BNPLC's Parent shall, in the absence of clear and
demonstrable error, be binding and conclusive upon NAI.

        "LIBOR PERIOD ELECTION " for any Base Rent Period means a period of one
month, three months or six months as designated by NAI at least five Business
Days prior to the commencement of such Base Rent Period by a notice given to
BNPLC in the form of Exhibit attached to the Land Lease. (For purposes of the
Land Lease a LIBOR Period Election for any Base Rent Period shall also be
considered the LIBOR Period Election in effect on the Base Rent Commencement
Date or


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 12


<PAGE>   59
Base Rent Date upon which such Base Rent Period begins.) Any Libor Period
Election so designated by NAI shall remain in effect for the entire Base Rent
Period specified in NAI's notice to BNPLC (provided such Base Rent Period
commences at least ten Business Days after BNPLC's receipt of the notice) and
for all subsequent Base Rent Periods until a new designation becomes effective
in accordance with the provisions set forth in this definition. Notwithstanding
the foregoing, however: (1) NAI shall not be entitled to designate a LIBOR
Period Election that would cause a Base Rent Period to extend beyond the end of
the scheduled Term; (2) changes in the LIBOR Period Election shall become
effective only upon the commencement of a new Base Rent Period; (3) for each
Base Rent Period that occurs within any Mandatory Collateral Period, the LIBOR
Period Election shall be one month; (4) no LIBOR Period Election designated by
NAI hereunder shall be different than the LIBOR Period Election specified under
(and as defined in) the Other Common Definitions and Provisions Agreement; and
(5) if NAI fails to make a LIBOR Period Election consistent with the foregoing
requirements for any Base Rent Period, or if an Event of Default shall have
occurred and be continuing on the third Business Day preceding the commencement
of any Base Rent Period, the LIBOR Period Election for such Base Rent Period
shall be deemed to be one month.

        "LIEN " means any mortgage, pledge, security interest, encumbrance, lien
or charge of any kind (including any agreement to give any of the foregoing, any
conditional sale or other title retention agreement, any lease in the nature
thereof, any agreement to sell receivables with recourse, and the filing of or
agreement to give any financing statement under the Uniform Commercial Code of
any jurisdiction). In addition, for purposes of subparagraph A.(8) of Part IV of
Schedule 1 attached to the Land Lease, "Lien" includes any Liens under ERISA
relating to Unfunded Benefit Liabilities of which NAI is required to notify
BNPLC under subparagraph 13.(a)(vii) of the Land Lease (irrespective of whether
NAI actually notifies BNPLC as required thereunder).

        "LIENS REMOVABLE BY BNPLC " means, and is limited to, Liens encumbering
the Property that are asserted (1) other than as contemplated in the Operative
Documents, by BNPLC itself, (2) by third parties lawfully claiming through or
under BNPLC (which for purposes of the Land Lease shall include any judgment
liens established against the Property because of a judgment rendered against
BNPLC and shall also include any liens established against the Property to
secure past due Excluded Taxes), or (3) by third parties lawfully claiming under
a deed or other instrument duly executed by BNPLC; provided, however, Liens
Removable by BNPLC shall not include (A) any Permitted Encumbrances or
Development Documents (regardless of whether claimed through or under BNPLC),
(B) the Operative Documents or any other document executed by BNPLC with the
knowledge of (and without objection by) NAI's counsel contemporaneously with the
execution and delivery of the Operative Documents, (C) Liens which are neither
lawfully claimed through or under BNPLC (as described above) nor claimed under a
deed or other instrument duly executed by BNPLC, (D) Liens claimed by NAI or
claimed through or under a conveyance made by NAI, (E) Liens arising because of
BNPLC's compliance with Applicable Law, the Operative Documents, Permitted
Encumbrances, the Development Documents or any written request made by NAI, (F)
Liens securing the payment of property taxes or other amounts assessed against
the Property by any governmental authority, other than to secure the payment of
past due Excluded Taxes or to secure damages caused by (and attributed by any
applicable principles of comparative fault to) BNPLC's own Established
Misconduct, (G) Liens resulting from or arising in connection with any breach by
NAI of the Operative Documents; or (H) Liens resulting from or arising in
connection with any Permitted Transfer that occurs more than thirty days after
any Designated Sale Date upon which, for any reason, NAI or an Affiliate of NAI
or any Applicable Purchaser shall not purchase BNPLC's interest in the Property
pursuant to the Purchase Agreement for a cash price to BNPLC (when taken
together with any Supplemental Payment made by NAI pursuant to Paragraph 1(A)(2)
of the Purchase Agreement, in the case of a purchase by an Applicable Purchaser)
equal to the Break Even Price.

        "LOSSES " means the following: any and all losses, liabilities, damages
(whether actual, consequential, punitive or otherwise denominated), demands,
claims, administrative or legal proceedings, actions, judgments, causes of
action, assessments, fines, penalties, costs and expenses (including Attorneys'
Fees and the fees of outside accountants and


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 13


<PAGE>   60
environmental consultants), of any and every kind or character, foreseeable and
unforeseeable, liquidated and contingent, proximate and remote.

        "MANDATORY COLLATERAL PERIOD " shall have the meaning assigned to it in
Part I of Schedule 1 attached to the Land Lease and to the Pledge Agreement.

        "MATERIAL ENVIRONMENTAL COMMUNICATION " means a communication between
NAI or its agents and a regulatory agency or third party, which causes, or
potentially could cause (whether by implementation of or response to said
communication), a material change in the scope, duration, or nature of any
Remedial Work.

        "MAXIMUM REMARKETING OBLIGATION " shall have the meaning indicated in
subparagraph 1(A)(2)(c) of the Purchase Agreement.

        "MINIMUM EXTENDED REMARKETING PRICE " shall have the meaning assigned to
it in subparagraph 2(B) of the Purchase Agreement.

        "MULTIEMPLOYER PLAN " means a multiemployer plan as defined in Section
3(37) of ERISA to which contributions have been made by NAI or any ERISA
Affiliate during the preceding six years and which is covered by Title IV of
ERISA.

        "NAI " means Network Appliance, Inc., a California corporation.

        "NAI'S EXTENDED REMARKETING PERIOD " shall have the meaning assigned to
it in subparagraph 2(A) of the Purchase Agreement.

        "NAI'S EXTENDED REMARKETING RIGHT " shall have the meaning assigned to
it in subparagraph 2(A) of the Purchase Agreement.

        "NAI'S INITIAL REMARKETING RIGHTS AND OBLIGATIONS " shall have the
meaning assigned to it in subparagraph 1(A)(2) of the Purchase Agreement.

        "OPERATIVE DOCUMENTS " means the Closing Certificate, the Land Lease,
the Purchase Agreement, the Pledge Agreement and this Common Definitions and
Provisions Agreement (Phase II - Land).

        "OTHER COMMON DEFINITIONS AND PROVISIONS AGREEMENT " means the Common
Definitions and Provisions Agreement (Phase II - Improvements), dated as of the
Effective Date, between BNPLC and NAI, as such Common Definitions and Provisions
Agreement may be extended, supplemented, amended, restated or otherwise modified
from time to time in accordance with its terms.

        "OTHER LEASE AGREEMENT " means the Lease Agreement (Phase II -
Improvements), dated as of the Effective Date, between BNPLC and NAI, as such
Lease Agreement may be extended, supplemented, amended, restated or otherwise
modified from time to time in accordance with its terms.

        "OTHER PURCHASE AGREEMENT " means the Purchase Agreement (Phase II -
Improvements), dated as of the Effective Date, between BNPLC and NAI, as such
Purchase Agreement may be extended, supplemented, amended, restated or otherwise
modified from time to time in accordance with its terms.


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 14


<PAGE>   61
        "PARTICIPANT " means BNPLC's Parent and any other Person that, upon
becoming a party to the Participation Agreement and the Pledge Agreement by
executing supplements as contemplated therein, agrees from time to time to
participate in all or some of the risks and rewards to BNPLC of the Land Lease
and the Purchase Documents. As of the Effective Date, the only Participant is
BNPLC's Parent, but BNPLC may agree after the Effective Date to share in risks
and rewards of the Land Lease and the Purchase Documents with other
Participants. However, no Person other than BNPLC's Parent and its Affiliates
shall qualify as a Participant for purposes of the Operative Documents or other
agreements concerning the Property to which NAI is a party unless such Person,
during the continuance of an Event of Default or otherwise with NAI's prior
written approval (which approval will not be unreasonably withheld), became a
party to the Pledge Agreement and to the Participation Agreement by executing
supplements to those agreements as contemplated therein.

        "PARTICIPATION AGREEMENT " means the Participation Agreement between
BNPLC and BNPLC's Parent dated as of the Effective Date, pursuant to which
BNPLC's Parent has agreed to participate in the risks and rewards to BNPLC of
the Land Lease and the other Operative Documents, as such Participation
Agreement may be extended, supplemented, amended, restated or otherwise modified
from time to time in accordance with its terms.

        "PBGC " means the Pension Benefit Guaranty Corporation and any entity
succeeding to any or all of its functions under ERISA.

        "PERMITTED ENCUMBRANCES " means (i) the encumbrances and other matters
affecting the Property that are set forth in Exhibit B attached to the Closing
Certificate, (ii) any easement agreement or other document affecting title to
the Property executed by BNPLC at the request of or with the consent of NAI
(including the Other Lease Agreement, the Other Purchase Agreement and all
documents executed by BNPLC pursuant to the Other Purchase Agreement), (iii) any
ground lease executed pursuant to the Other Purchase Agreement, (iv) any Liens
securing the payment of Impositions which are not delinquent or claimed to be
delinquent or which are being contested in accordance with subparagraph 5.(a) of
the Land Lease, and (iv) mechanics' and materialmen's liens for amounts not past
due or claimed to be past due or which are being contested in accordance with
subparagraph 11.(c) of the Land Lease.

        "PERMITTED HAZARDOUS SUBSTANCE USE " means the use, generation, storage
and offsite disposal of Permitted Hazardous Substances in strict accordance with
applicable Environmental Laws and with due care given the nature of the
Hazardous Substances involved; provided, the scope and nature of such use,
generation, storage and disposal shall not:

                (1)     exceed that reasonably required for the construction of
        the Construction Project in accordance with the Other Lease Agreement
        and the Construction Management Agreement or for the operation of the
        Property for the purposes expressly permitted under subparagraph 2.(a)
        of the Land Lease; or

                (2)     include any disposal, discharge or other release of
        Hazardous Substances from the Property in any manner that might allow
        such substances to reach surface water or groundwater, except (i)
        through a lawful and properly authorized discharge (A) to a publicly
        owned treatment works or (B) with rainwater or storm water runoff in
        accordance with Applicable Laws and any permits obtained by NAI that
        govern such runoff; or (ii) any such disposal, discharge or other
        release of Hazardous Substances for which no permits are required and
        which are not otherwise regulated under applicable Environmental Laws.


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 15


<PAGE>   62
Further, notwithstanding anything to the contrary herein contained, Permitted
Hazardous Substance Use shall not include any use of the Property in a manner
that requires a RCRA treatment, storage or disposal permit, including a
landfill, incinerator or other waste disposal facility.

        "PERMITTED HAZARDOUS SUBSTANCES " means Hazardous Substances used and
reasonably required for the construction of the Construction Project or for the
use of the Property by NAI and its permitted subtenants and assigns for the
purposes expressly permitted by subparagraph 2.(a) of the Land Lease, in either
case in strict compliance with all Environmental Laws and with due care given
the nature of the Hazardous Substances involved. Without limiting the generality
of the foregoing, Permitted Hazardous Substances shall include usual and
customary office, laboratory and janitorial products.

        "PERMITTED TRANSFER " means any one or more of the following: (1) the
creation or conveyance by BNPLC of rights and interests in favor of any
Participant pursuant to the Participation Agreement; (2) the creation or
conveyance of rights and interests in favor of or to Banque Nationale de Paris
(through its San Francisco Branch or otherwise), as BNPLC's Parent, or any other
Qualified Affiliate of BNPLC, provided that NAI must be notified before any such
conveyance to Banque Nationale de Paris or another Qualified Affiliate of (A)
any interest in the Property or any portion thereof by an assignment or other
document which will be recorded in the real property records of San Mateo
County, California or (B) BNPLC's entire interest in the Land and the Property;
(3) any assignment or conveyance by BNPLC or its permitted successors or assigns
to any present or future Participant of any lien or security interest against
the Property (in contrast to a conveyance of BNPLC's fee estate in the Land and
Improvements) or of any interest in Rent, payments required by or under the
Purchase Documents or payments to be generated from the Property after the Term,
provided that such assignment or conveyance is made expressly subject to the
rights of NAI under the Operative Documents; (4) any agreement to exercise or
refrain from exercising rights or remedies under the Operative Documents made by
BNPLC with any present or future Participant; (5) any assignment or conveyance
by BNPLC requested by NAI or required by any Permitted Encumbrance, by the
Purchase Agreement, by the Existing Contract, by any other Development Contract
or by Applicable Laws; or (6) any assignment or conveyance after a Designated
Sale Date on which NAI shall not have purchased or caused an Applicable
Purchaser to purchase BNPLC's interest in the Property and, if applicable, after
the expiration of the thirty day cure period specified in Paragraph 4(D) of the
Purchase Agreement.

        "PERSON " means an individual, a corporation, a partnership, an
unincorporated organization, an association, a joint stock company, a joint
venture, a trust, an estate, a government or agency or political subdivision
thereof or other entity, whether acting in an individual, fiduciary or other
capacity.

        "PERSONAL PROPERTY " shall have the meaning assigned to it on page of
the Land Lease.

        "PLAN " means any employee benefit or other plan established or
maintained, or to which contributions have been made, by NAI or any ERISA
Affiliate of NAI during the preceding six years and which is covered by Title IV
of ERISA, other than a Multiemployer Plan.

        "PLEDGE AGREEMENT " means the Pledge Agreement (Phase II - Land) dated
as of the date hereof between BNPLC and NAI, pursuant to which NAI may pledge
certificates of deposit as security for NAI's obligations under the Purchase
Agreement (and for the corresponding obligations of BNPLC to the Participants
under the Participation Agreement), as such Pledge Agreement may be extended,
supplemented, amended, restated or otherwise modified from time to time in
accordance with its terms.


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 16


                                       16
<PAGE>   63
        "PRIME RATE " means the prime interest rate or equivalent charged by
BNPLC's Parent in the United States of America as announced or published by
BNPLC's Parent from time to time, which need not be the lowest interest rate
charged by BNPLC's Parent. If for any reason BNPLC's Parent does not announce or
publish a prime rate or equivalent, the prime rate or equivalent announced or
published by either CitiBank, N.A. or any New York branch or office of Credit
Commercial de France as selected by BNPLC shall be used to compute the rate
describe in the preceding sentence. The prime rate or equivalent announced or
published by such bank need not be the lowest rate charged by it. The Prime Rate
may change from time to time after the Effective Date without notice to NAI as
of the effective time of each change in rates described in this definition.

        "PROPERTY " means the Personal Property and the Real Property,
collectively. All rights, titles and interests acquired by BNPLC under the
Existing Contract are, to the extent not covered by the Land Lease and thus not
encompassed within this definition of Property, are intended to be covered by
the Other Lease Agreement and encompassed within the term "Property" as defined
in the Other Common Definitions and Provisions Agreement.

        "PURCHASE AGREEMENT " means the Purchase Agreement (Phase II - Land)
dated as of May 3, 1999 between BNPLC and NAI, as such Purchase Agreement may be
extended, supplemented, amended, restated or otherwise modified from time to
time in accordance with its terms.

        "PURCHASE DOCUMENTS " means collectively (1) the Purchase Agreement, (2)
the Memorandum of Purchase Agreement executed by BNPLC and NAI as of the
Effective Date and recorded to provide notice of the Purchase Agreement; and (3)
the Pledge Agreement and all financing statements, notices, acknowledgments and
certificates of deposit executed or delivered from time to time by NAI, BNPLC or
the other parties to the Pledge Agreement pursuant to and as expressly provided
therein.

        "PURCHASE OPTION " shall have the meaning assigned to it in subparagraph
1(A)(1) of the Purchase Agreement.

        "QUALIFIED AFFILIATE " means any Person that is one hundred percent
(100%) owned, directly or indirectly, by Banque Nationale de Paris or any
successor of such bank; provided, that such Person can make (and has in writing
made) the same representations to NAI that BNPLC has made in Paragraphs 3(D) and
3(E) of the Closing Certificate; and, provided, further, that such Person is not
insolvent.

        "QUALIFIED PREPAYMENTS " means any payments received by BNPLC from time
to time during the Term (1) under any property insurance policy as a result of
damage to the Property, (2) as compensation for any restriction placed upon the
use or development of the Property or for the condemnation of the Property or
any portion thereof, (3) because of any judgment, decree or award for injury or
damage to the Property or (4) under any title insurance policy or otherwise as a
result of any title defect or claimed title defect with respect to the Property;
provided, however, that (x) in determining the amount of "Qualified
Prepayments", there shall be deducted all expenses and costs of every kind, type
and nature (including taxes, Breakage Costs and Attorneys' Fees) incurred by
BNPLC with respect to the collection or application of such payments, (y)
"Qualified Prepayments" shall not include any payment to BNPLC by a Participant
or an Affiliate of BNPLC that is made to compensate BNPLC for the Participant's
or Affiliate's share of any Losses BNPLC may incur as a result of any of the
events described in the preceding clauses (1) through (4) and (z) "Qualified
Prepayments" shall not include any payments received by BNPLC that BNPLC has
paid or is obligated to pay to NAI for the restoration or repair of the Property
or that BNPLC is holding as Escrowed Proceeds pursuant to Paragraph 10 of the
Land Lease or any other provision of the Land Lease. For purposes of computing
the total Qualified Prepayments (and other amounts dependent upon Qualified
Prepayments, such as Stipulated Loss Value) paid to or received by BNPLC as of
any date, payments described in the preceding clauses (1) through


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 17

<PAGE>   64
(4) will be considered as Escrowed Proceeds, not Qualified Prepayments, until
they are actually applied as Qualified Prepayments by BNPLC as provided in the
Paragraph 10 of the Land Lease.

        "REAL PROPERTY " shall have the meaning assigned to it on page 1 of the
Land Lease.

        "REMEDIAL WORK " means any investigation, monitoring, clean-up,
containment, remediation, removal, payment of response costs, or restoration
work and the preparation and implementation of any closure or other required
remedial plans that any governmental agency or political subdivision requires or
approves (or could reasonably be expected to require if it was aware of all
relevant circumstances concerning the Property), whether by judicial order or
otherwise, because of the presence of or suspected presence of Hazardous
Substances in, on, under or about the Property or because of any prior Hazardous
Substance Activity. Without limiting the generality of the foregoing, Remedial
Work also means any obligations imposed upon or undertaken by NAI pursuant to
Development Documents or any recommendations or proposals made therein.

        "RENT " means the Base Rent and all Additional Rent.

        "RESIDUAL RISK PERCENTAGE " means fifteen percent (15%).

        "RESPONSIBLE FINANCIAL OFFICER " means the chief financial officer, the
controller, the treasurer or the assistant treasurer of NAI.

        "SALE CLOSING DOCUMENTS " shall have the meaning assigned to it in
subparagraph 1(C) of the Purchase Agreement.

        "SECURED SPREAD " means thirty basis points (30/100 of 1%); provided,
however, that for purposes of calculating the Base Rent for any Mandatory
Collateral Period, the Secured Spread shall equal one-half of the Unsecured
Spread for the same period.

        "SELLER " means Martin/Crossman, LLC, a California limited liability
company.

        "STIPULATED LOSS VALUE " as of any date means the amount equal to the
sum of the Initial Funding Advance, minus all funds actually received by BNPLC
and applied as Qualified Prepayments on or prior to such date. Under no
circumstances will any payment of Base Rent reduce Stipulated Loss Value.

        "SUBSIDIARY " means, with respect to any Person, any Affiliate of which
at least a majority of the securities or other ownership interests having
ordinary voting power then exercisable for the election of directors or other
persons performing similar functions are at the time owned directly or
indirectly by such Person.

        "SUPPLEMENTAL PAYMENT " shall have the meaning assigned to it in
subparagraph 1(A)(2)(c) of the Purchase Agreement.

        "TERM " shall have the meaning assigned to it in subparagraph 1.(a) of
the Land Lease.

        "THIRD PARTY PRICE " shall have the meaning assigned to it in
subparagraph 1(A)(2) of the Purchase Agreement.


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 18


<PAGE>   65
        "THIRD PARTY SALE NOTICE " shall have the meaning assigned to it in
subparagraph 2(C) of the Purchase Agreement.

        "THIRD PARTY SALE PROPOSAL " shall have the meaning assigned to it in
subparagraph 2(C) of the Purchase Agreement.

        "THIRD PARTY TARGET PRICE " shall have the meaning assigned to it in
subparagraph 2(C) of the Purchase Agreement.

        "TRANSACTION EXPENSES " means costs incurred in connection with the
preparation and negotiation of the Operative Documents and related documents and
the consummation of the transactions contemplated therein.

        "UNFUNDED BENEFIT LIABILITIES " means, with respect to any Plan or
Multiemployer Plan, the amount (if any) by which the present value of all
benefit liabilities (within the meaning of Section 4001(a)(16) of ERISA) under
the Plan or Multiemployer Plan exceeds the market value of all Plan or
Multiemployer assets allocable to such benefit liabilities, as determined on the
most recent valuation date of the Plan or Multiemployer Plan and in accordance
with the provisions of ERISA for calculating the potential liability of NAI or
any ERISA Affiliate of NAI under Title IV of ERISA.

        "UNSECURED SPREAD " means, for each period beginning on and including
the Base Rent Commencement Date or a Base Rent Date and ending on but not
including the next Base Rent Date, the amount established as described below in
this definition on the date (in this definition, the "SPREAD TEST DATE") that is
two Business Days prior to such period by reference to the ratio calculated by
dividing (1) Adjusted EBIT for the then latest Rolling Four Quarters Period that
ended prior to (and for which NAI has reported earnings as necessary to compute
Adjusted EBIT) into (2) the total Debt of NAI and its Subsidiaries (determined
on a consolidated basis) as of the end of such Rolling Four Quarters Period. The
Unsecured Spread shall be established at the Level in the pricing grid below
which corresponds to such ratio; provided, that:

                (a)     for any period commencing on or prior to the first
        Business Day of August, 1999, the Unsecured Spread will be the amount
        indicated for Level III in the pricing grid below;

                (b)     promptly after earnings are reported by NAI for the
        latest quarter in any Rolling Four Quarters Period, NAI must notify
        BNPLC of any resulting change in the Unsecured Spread under this
        definition, and no reduction in the Unsecured Spread from one period to
        the next will be effective for purposes of the Operative Documents
        unless, prior to the Spread Test Date for the next period, NAI shall
        have provided BNPLC with a written notice setting forth and certifying
        the calculation under this definition that justifies the reduction; and


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 19


<PAGE>   66
                (c)     notwithstanding anything to the contrary in this
        definition, on any date when an Event of Default has occurred and is
        continuing, the Unsecured Spread shall equal the Default Rate less the
        Effective Rate.



====================================================================================
  LEVELS           RATIO OF TOTAL DEBT TO ADJUSTED EBIT            UNSECURED SPREAD
------------------------------------------------------------------------------------
                                                            
 Level I                      less than 0.5                       125.0 basis points
------------------------------------------------------------------------------------
 Level II           greater than or equal to 0.5, but             137.5 basis points
                              less than 1.0
------------------------------------------------------------------------------------
Level III           greater than or equal to 1.0, but             150.0 basis points
                              less than 1.5
------------------------------------------------------------------------------------
 Level IV           greater than or equal to 1.5, but             175.0 basis points
                              less than 2.0
------------------------------------------------------------------------------------
 Level V               greater than or equal to 2.0               200.0 basis points
====================================================================================



All determinations of the Unsecured Spread by BNPLC shall, in the absence of
clear and demonstrable error, be binding and conclusive for purposes of the Land
Lease. Further BNPLC may, but shall not be required, to rely on the
determination of the Unsecured Spread set forth in any notice delivered by NAI
as described above in clause (b) of this definition.

        "VOLUNTARY RETENTION OF THE PROPERTY " means an affirmative election
made by BNPLC to keep the Property pursuant to, and under the circumstances
described in, the second sentence of subparagraph 1(A)(2)(a) of the Purchase
Agreement.

                      ARTICLE II - RULES OF INTERPRETATION

        THE FOLLOWING PROVISIONS WILL APPLY TO AND GOVERN THE INTERPRETATION OF
EACH OF THE OPERATIVE DOCUMENTS:

1       NOTICES . The provision of any Operative Document, or of any Applicable
Laws with reference to the sending, mailing or delivery of any notice or demand
under any Operative Document or with reference to the making of any payment
required under any Operative Document, shall be deemed to be complied with when
and if the following steps are taken:

        (i)     All Rent and other amounts required to be paid by NAI to BNPLC
        shall be paid to BNPLC in immediately available funds by wire transfer
        to:

                Federal Reserve Bank of New York
                ABA  026007689 Banque Nationale de Paris
                /BNP/ BNP San Francisco
                /AC/ 14334000176
                /Ref/ NAI Sunnyvale Synthetic Land Lease


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 20


<PAGE>   67
        or at such other place and in such other manner as BNPLC may designate
        in a notice to NAI.

        (ii)     All Collateral required to be paid by NAI to the Agent shall be
        paid in immediately available funds by wire transfer to:

                Federal Reserve Bank of New York
                ABA  026007689 Banque Nationale de Paris
                /BNP/ BNP San Francisco
                /AC/ 14334000176
                /Ref/ NAI Collateral Payment

        or at such other place and in such other manner as Agent may designate
        in a notice to NAI.

        (iii)    All notices, demands, approvals, consents and other
        communications to be made under any Operative Document to or by the
        parties thereto must, to be effective for purpose of such Operative
        Document, be in writing. Notices, demands and other communications
        required or permitted under any Operative Document are to be sent to the
        addresses set forth below (or in the case of communications to
        Participants, at the addresses set forth in Schedule 1 to the
        Participation Agreement) and shall be given by any of the following
        means: (A) personal service, with proof of delivery or attempted
        delivery retained; (B) electronic communication, whether by telex,
        telegram or telecopying (if confirmed in writing sent by United States
        first class mail, return receipt requested); or (C) registered or
        certified first class mail, return receipt requested. Such addresses may
        be changed by notice to the other parties given in the same manner as
        provided above. Any notice or other communication sent pursuant to
        clause (A) or (B) hereof shall be deemed received upon such personal
        service or upon dispatch by electronic means, and, if sent pursuant to
        clause (C) shall be deemed received five days following deposit in the
        mail.


                Address of BNPLC:

                BNP Leasing Corporation
                12201 Merit Drive
                Suite 860
                Dallas, Texas 75251
                Attention: Lloyd G. Cox
                Telecopy: (972) 788-9191

                With a copy to:

                Banque Nationale de Paris, San Francisco
                180 Montgomery Street
                San Francisco, California 94104
                Attention: Gavin Holles
                Telecopy: (415) 296-8954

                And for draw requests and funding notices, with a copy to:

                Banque Nationale de Paris, San Francisco
                180 Montgomery Street


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 21


<PAGE>   68
                San Francisco, California 94104
                Attention: George Fung
                Telecopy: (415) 296-8954

                Address of NAI:

                Network Appliance, Inc.
                Attn: Leslie Paulides
                2770 San Thomas Expressway
                Santa Clara, CA 95051
                Telecopy: (408) 367-3452

2       SEVERABILITY . If any term or provision of any Operative Document or the
application thereof shall to any extent be held by a court of competent
jurisdiction to be invalid and unenforceable, the remainder of such document, or
the application of such term or provision other than to the extent to which it
is invalid or unenforceable, shall not be affected thereby.

3       NO MERGER . There shall be no merger of the Land Lease or of the
leasehold estate created by the Land Lease with any other interest in the
Property by reason of the fact that the same person may acquire or hold,
directly or indirectly, the Land Lease or the leasehold estate created hereby
and any other interest in the Property, unless all Persons with an interest in
the Property that would be adversely affected by any such merger specifically
agree in writing that such a merger shall occur. There shall be no merger of the
Purchase Agreement or of the purchase options or obligations created by the
Purchase Agreement with any other interest in the Property by reason of the fact
that the same person may acquire or hold, directly or indirectly, the Land Lease
or the leasehold estate created hereby and any other interest in the Property,
unless all Persons with an interest in the Property that would be adversely
affected by any such merger specifically agree in writing that such a merger
shall occur.

4       NO IMPLIED WAIVER . The failure of BNPLC or NAI to insist at any time
upon the strict performance of any covenant or agreement or to exercise any
option, right, power or remedy contained in any Operative Document shall not be
construed as a waiver or a relinquishment thereof for the future. The failure of
Agent to insist at any time upon the strict performance of any covenant or
agreement or to exercise any option, right, power or remedy contained in the
Pledge Agreement shall not be construed as a waiver or a relinquishment thereof
for the future. The waiver of or redress for any breach of any Operative
Document by any party thereto shall not prevent a similar subsequent act from
constituting a violation. Any express waiver of any provision of any Operative
Document shall affect only the term or condition specified in such waiver and
only for the time and in the manner specifically stated therein. No waiver by
any party to any Operative Document of any provision therein shall be deemed to
have been made unless expressed in writing and signed by the party to be bound
by the waiver. A receipt by BNPLC of any Rent with knowledge of the breach by
NAI of any covenant or agreement contained in the Land Lease or any other
Operative Document shall not be deemed a waiver of such breach. A receipt by
Agent of any Collateral or other payment under the Pledge Agreement with
knowledge of the breach by NAI of any covenant or agreement contained in the
Pledge Agreement shall not be deemed a waiver of such breach.

5       ENTIRE AND ONLY AGREEMENTS . The Operative Documents supersede any prior
negotiations and agreements between BNPLC, Agent and NAI concerning the Property
or the Collateral, and no amendment or modification of


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 22


<PAGE>   69
any Operative Document shall be binding or valid unless expressed in a writing
executed by all parties to such Operative Document.

6       BINDING EFFECT . Except to the extent, if any, expressly provided to the
contrary in any Operative Document with respect to assignments thereof, all of
the covenants, agreements, terms and conditions to be observed and performed by
the parties to the Operative Documents shall be applicable to and binding upon
their respective successors and, to the extent assignment is permitted
thereunder, their respective assigns.

7       TIME IS OF THE ESSENCE . Time is of the essence as to all obligations of
NAI and BNPLC and all notices required of NAI and BNPLC under the Operative
Documents.

8       GOVERNING LAW . Each Operative Document shall be governed by and
construed in accordance with the laws of the State of California without regard
to conflict or choice of laws (subject, however, in the case of the Pledge
Agreement to any contrary provisions of the "UCC," as defined in the Pledge
Agreement).

9       PARAGRAPH HEADINGS . The paragraph and section headings contained in the
Operative Documents are for convenience only and shall in no way enlarge or
limit the scope or meaning of the various and several provisions thereof.

10      NEGOTIATED DOCUMENTS . All the parties to each Operative Document and
their counsel have reviewed and revised or requested revisions to such Operative
Document, and the usual rule of construction that any ambiguities are to be
resolved against the drafting party shall not apply to the construction or
interpretation of any Operative Documents or any amendments thereof.

11      TERMS NOT EXPRESSLY DEFINED IN AN OPERATIVE DOCUMENT . As used in any
Operative Document, a capitalized term that is not defined therein or in this
Common Definitions and Provisions Agreement (Phase II - Land), but is defined in
another Operative Document, shall have the meaning ascribed to it in the other
Operative Document.

12      OTHER TERMS AND REFERENCES . Words of any gender used in each Operative
Document shall be held and construed to include any other gender, and words in
the singular number shall be held to include the plural and vice versa, unless
the context otherwise requires. References in any Operative Document to
Paragraphs, subparagraphs, Sections, subsections or other subdivisions shall
refer to the corresponding Paragraphs, subparagraphs, Sections, subsections or
subdivisions of that Operative Document, unless specific reference is made to
another document or instrument. References in any Operative Document to any
Schedule or Exhibit shall refer to the corresponding Schedule or Exhibit
attached to that Operative Document, which shall be made a part thereof by such
reference. All capitalized terms used in each Operative Document which refer to
other documents shall be deemed to refer to such other documents as they may be
renewed, extended, supplemented, amended or otherwise modified from time to
time, provided such documents are not renewed, extended or modified in breach of
any provision contained in the Operative Documents or, in the case of any other
document to which BNPLC is a party or of which BNPLC is an intended beneficiary,
without the consent of BNPLC. All accounting terms used but not specifically
defined in any Operative Document shall be construed in accordance with GAAP.
The words "this [Agreement]", "herein", "hereof", "hereby", "hereunder" and
words of similar import when used in each Operative Document refer to that
Operative Document as a whole and not to any particular subdivision unless
expressly so limited. The phrases "this Paragraph", "this subparagraph", "this
Section", "this subsection" and similar phrases used in any operative document
refer only to the Paragraph, subparagraph, Section, subsection or other
subdivision described in which the phrase occurs. As used in the Operative
Documents the word "or" is not exclusive. As used in the Operative Documents,
the words "include", "including" and similar terms shall be construed as if
followed by "without limitation to".


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 23


<PAGE>   70

13      EXECUTION IN COUNTERPARTS . To facilitate execution, each Operative
Document may be executed in as many identical counterparts as may be required.
It shall not be necessary that the signature of, or on behalf of, each party, or
that the signature of all persons required to bind any party, appear on each
counterpart. All counterparts, taken together, shall collectively constitute a
single instrument. It shall not be necessary in making proof of any Operative
Document to produce or account for more than a single counterpart containing the
respective signatures of, or on behalf of, each of the parties hereto. Any
signature page to any counterpart may be detached from such counterpart without
impairing the legal effect of the signatures thereon and thereafter attached to
another counterpart identical thereto except having attached to it additional
signature pages.

14      NOT A PARTNERSHIP, ETC . NOTHING IN ANY OPERATIVE DOCUMENT IS INTENDED
TO CREATE ANY PARTNERSHIP, JOINT VENTURE, OR OTHER JOINT ENTERPRISE BETWEEN
BNPLC AND NAI. NEITHER THE EXECUTION OF ANY OPERATIVE DOCUMENT NOR THE
ADMINISTRATION THEREOF OR OTHER DOCUMENTS REFERENCED HEREIN BY BNPLC, NOR ANY
OTHER RIGHT, DUTY OR OBLIGATION OF BNPLC UNDER OR PURSUANT TO ANY OPERATIVE
DOCUMENT IS INTENDED TO BE OR TO CREATE ANY FIDUCIARY OBLIGATIONS OF BNPLC TO
NAI.

                         [The signature pages follows.]


     Common Definitions and Provisions Agreement (Phase II - Land) - Page 24


<PAGE>   71
        IN WITNESS WHEREOF, NAI and BNPLC have caused this Common Definitions
and Provisions Agreement (Phase II - Land) to be executed as of May 3, 1999.



                                       "NAI"

                                       NETWORK APPLIANCE, INC.


                                       By:______________________________________
                                          Name:_________________________________
                                          Title:________________________________




     Common Definitions and Provisions Agreement (Phase II - Land) - Page 25


<PAGE>   72
[Continuation of signature pages to Common Definitions and Provisions Agreement
(Phase II - Land) dated to be effective May 3, 1999]



                                       "BNPLC"

                                       BNP LEASING CORPORATION


                                       By:______________________________________
                                          Lloyd G. Cox, Vice President




     Common Definitions and Provisions Agreement (Phase II - Land) - Page 26