<PAGE>   1
                                                                   EXHIBIT 10.68

                       CONSTRUCTION MANAGEMENT AGREEMENT
                           (PHASE IV -- IMPROVEMENTS)





                                     BETWEEN





                             BNP LEASING CORPORATION


                                    ("BNPLC")





                                       AND





                            NETWORK APPLIANCE, INC.


                                     ("NAI")








                                 OCTOBER 2, 2000


                             (SUNNYVALE, CALIFORNIA)

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<TABLE>
<CAPTION>


                                TABLE OF CONTENTS
                                                                                          Page
<S>                                                                                       <C>
RECITALS.....................................................................................1


CONSENT AND AUTHORIZATION....................................................................1


GENERAL TERMS AND CONDITIONS.................................................................1


1.      CONSTRUCTION BY NAI..................................................................1
               (A)    The Construction Project...............................................1
                      (1)    Construction Approvals by BNPLC.................................1
                             (a)    Preconstruction Approvals by BNPLC.......................1
                             (b)    Definition of Scope Change...............................2
                             (c)    Approval of Scope Changes................................2
                      (2)    NAI's Right to Control and Responsibility for Construction......2
                             (a)    Performance of the Work..................................3
                             (b)    Third Party Contracts....................................3
                             (c)    Third Party Estoppels....................................4
                             (d)    Adequacy of Drawings, Specifications and Budgets.........4
                             (e)    Existing Condition of the Land and Improvements..........4
                             (f)    Correction of Defective Work.............................5
                             (g)    Clean Up.................................................5
                             (h)    No Damage for Delays.....................................5
                             (i)    No Fee For Construction Management.......................5
                      (3)    Quality of Work.................................................5
               (B)    Completion Notices.....................................................5

2.      CONSTRUCTION ADVANCES................................................................6
               (A)    Costs Subject to Reimbursement Through Construction Advances...........6
               (B)    Exclusions From Reimbursable Construction-Period Costs.................7
               (C)    Conditions to NAI's Right to Receive Construction Advances.............8
                      (1)    Construction Advance Requests...................................8
                      (2)    Amount of the Advances..........................................8
                             (a)    Limit Dependent Upon the Maximum Construction
                                    Allowance................................................8
                             (b)    Limit Dependent Upon Costs Previously Incurred by
                                    NAI......................................................9
                             (c)    Limit During Suspension Period...........................9
                             (d)    Restrictions Imposed for Administrative
                                    Convenience.............................................10
                      (3)    No Advances After Certain Dates................................10
               (D)    Breakage Costs for Construction Advances Requested But Not Taken......10
               (E)    No Third Party Beneficiaries..........................................10
               (F)    No Waiver.............................................................10
               (G)    Funding by Participants...............................................10
</TABLE>


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<TABLE>
<CAPTION>

<S>     <C>                                                                                 <C>
3.      COST OVERRUNS.......................................................................12
               (A)    Definition of Projected Cost Overruns.................................12
               (B)    Notice of Projected Cost Overruns.....................................12
               (C)    Election to Make a Voluntary NAI Construction Contribution............13

4.      SUSPENSION AND TERMINATION..........................................................13
               (A)    CMA Suspension Events.................................................13
                      (1)    Projection of Cost Overruns....................................13
                      (2)    Interruption of Construction...................................13
                      (3)    Failure of NAI to Correct Defective Work.......................13
                      (4)    Failure of NAI to Provide Evidence of Costs and Expenses.......14
               (B)    FOCB Notices, Preemptive Notices and CMA Termination Events...........14
               (C)    Rights and Obligations of NAI During a CMA Suspension Period..........15
               (D)    Election by NAI to Terminate..........................................15
               (E)    BNPLC's Right to Terminate............................................15
               (F)    Rights and Obligations Surviving Termination..........................16
               (G)    Cooperation by NAI Following Any Termination..........................16
</TABLE>



                                    EXHIBITS

Exhibit A   Legal Description

Exhibit B   Description of the Construction Project (With Site Plan Attached)

Exhibit C   Form of Contractor Estoppel

Exhibit D   Form of Design Professional Estoppel

Exhibit E   Notice Requesting Advance to Cover Insurance Deductible

Exhibit F   Construction Advance Request Form

Exhibit G   Notice of Voluntary NAI Funding Commitment

Exhibit H   Preemptive Notice by NAI

Exhibit I   Notice of Termination by NAI



                                       ii

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                       CONSTRUCTION MANAGEMENT AGREEMENT
                            (PHASE IV -- IMPROVEMENTS)

        This CONSTRUCTION MANAGEMENT AGREEMENT (PHASE IV -- IMPROVEMENTS) (this
"AGREEMENT"), by and between BNP LEASING CORPORATION, a Delaware corporation
("BNPLC"), and NETWORK APPLIANCE, INC., a California corporation ("NAI"), is
made and dated as of October 2, 2000, the Effective Date. ("EFFECTIVE DATE" and
other capitalized terms used and not otherwise defined in this Agreement are
intended to have the meanings assigned to them in the Common Definitions and
Provisions Agreement (Phase IV -- Improvements) executed by BNPLC and NAI
contemporaneously with this Agreement. By this reference, the Common Definitions
and Provisions Agreement (Phase IV -- Improvements) is incorporated into and
made a part of this Agreement for all purposes.)

                                    RECITALS

        Pursuant to the Lease Agreement (Phase IV -- Improvements) executed by
BNPLC and NAI contemporaneously this Agreement (the "IMPROVEMENTS LEASE"), which
covers the Improvements on the Land described in Exhibit A, BNPLC is leasing the
Improvements and any appurtenances thereto to NAI.

        In anticipation of the construction of new or additional Improvements
for NAI's use pursuant to the Improvements Lease, BNPLC and NAI have agreed upon
the terms and conditions upon which BNPLC is willing to authorize NAI to arrange
and manage such construction and upon which BNPLC is willing to provide funds
for such construction, and by this Agreement BNPLC and NAI desire to evidence
such agreement.

                            CONSENT AND AUTHORIZATION

        Subject to the terms and conditions set forth in this Agreement and in
the Improvements Lease, BNPLC does hereby grant its consent and authorization to
NAI for the construction by NAI of the Construction Project on the Land and for
the management by NAI of such construction; provided, however, all rights of NAI
against BNPLC hereunder are expressly made subject and subordinate to the
Permitted Encumbrances and to any other claims or encumbrances affecting the
Land or the Property that may be asserted by third parties and that do not
constitute Liens Removable by BNPLC.

                          GENERAL TERMS AND CONDITIONS

        1.      CONSTRUCTION BY NAI

        (A)     The Construction Project.

                (1) Construction Approvals by BNPLC.

                        (a) Preconstruction Approvals by BNPLC. NAI submitted
                and obtained BNPLC's approval of the site plan and descriptions
                of the Construction Project referenced in Exhibit B. Also set
                forth in Exhibit B is a general description of the Construction
                Project. The Construction Project, as constructed by NAI
                pursuant

<PAGE>   5

                to this Agreement, and all construction contracts and other
                agreements executed or adopted by NAI in connection therewith,
                shall be not materially inconsistent with the plans or other
                items referenced in Exhibit B, except to the extent otherwise
                provided by any Scope Change (as defined below) approved by
                BNPLC and except as otherwise provided in subparagraph 6(d) of
                the Improvements Lease if BNPLC should make a Landlord's
                Election to Continue Construction after any termination of this
                Agreement.

                        (b) Definition of Scope Change. As used herein, "SCOPE
                CHANGE" means a change to the Construction Project that, if
                implemented, will make the quality, function or capacity of the
                Improvements "materially different" (as defined below in this
                subparagraph) than as described or inferred by site plan, plans
                and renderings referenced in Exhibit B. The term "SCOPE CHANGE"
                is not intended to include the mere refinement, correction or
                detailing of the site plan, plans or renderings submitted to
                BNPLC by NAI. As used in this subparagraph, a "material
                difference" means a difference that could reasonably be expected
                to (a) after completion of the Construction Project and the
                funding of all Construction Advances required in connection
                therewith, significantly reduce any excess of the market value
                of the Property over Stipulated Loss Value or significantly
                increase any excess of Stipulated Loss Value over the market
                value of the Property, (b) change the general character of the
                Improvements from that needed to accommodate the uses permitted
                by subparagraph 2(a) of the Improvements Lease, or (c) result in
                Projected Cost Overruns (as defined below).

                        (c) Approval of Scope Changes. Before making a Scope
                Change, NAI shall provide to BNPLC a reasonably detailed written
                description of the Scope Change, a revised construction budget
                for the Construction Project and a copy of any changes to the
                drawings, plans and specifications for the Improvements required
                in connection therewith, all of which must be approved in
                writing by BNPLC (or by any inspecting architect appointed by
                BNPLC from time to time) before the Scope Change is implemented.
                BNPLC's approval shall not in any event constitute a waiver of
                subparagraph 1(A)(3) or of any other provision of this Agreement
                or the Improvements Lease.

                (2) NAI's Right to Control and Responsibility for Construction.
        Subject to the terms and conditions set forth in this Agreement and in
        the Improvements Lease, and prior to any termination of this Agreement
        as provided in subparagraphs 4(D) and 4(E), NAI shall have the sole
        right to control and the sole responsibility for the design and
        construction of the Construction Project, including the means, methods,
        sequences and procedures implemented to accomplish such design and
        construction. Although title to all Improvements will pass directly to
        BNPLC (as more particularly provided in Paragraph 7 of the Improvements
        Lease), BNPLC's obligation with respect to the Construction Project
        shall be limited to the making of advances under and subject to the
        conditions set forth in this Agreement and in Paragraph 6 of the
        Improvements Lease. Without limiting the foregoing, NAI acknowledges and
        agrees that:

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                        (a) Performance of the Work. Except as provided in
                subparagraphs 4(C) and 4(F), NAI must, using its best skill and
                judgment and in an expeditious and economical manner not
                inconsistent with the interests of BNPLC, perform or cause to be
                performed all work required, and will provide or cause to be
                provided all supplies and materials required, to design and
                complete construction of the Construction Project (collectively
                "WORK"). The Work will include obtaining all necessary building
                permits and other governmental approvals required in connection
                with the design and construction of the Construction Project, or
                required in connection with the use and occupancy thereof (e.g.,
                final certificates of occupancy). The Work will also include any
                repairs or restoration required because of damage to
                Improvements by fire or other casualty prior to the Base Rent
                Commencement Date (All Buildings) (a "PRE-COMMENCEMENT
                CASUALTY"); however, the cost of any such repairs or restoration
                will be subject to reimbursement not only through Construction
                Advances made on and subject to the terms and conditions of this
                Agreement, but also through the application of Escrowed Proceeds
                as provided in the Improvements Lease. NAI will carefully
                schedule and supervise all Work, will check all materials and
                services used in connection with all Work and will keep full and
                detailed accounts as may be necessary to document expenditures
                made or expenses incurred for the Work. Subject to delays beyond
                the reasonable control of NAI, NAI shall cause all Work to be
                completed on or before the first Business Day of November 2002.

                        (b) Third Party Contracts.

                                1) NAI shall not enter into any construction
                        contract or other agreement with a third party
                        concerning the Work or the Construction Project (a
                        "THIRD PARTY CONTRACT") in the name of BNPLC or
                        otherwise purport to bind BNPLC to any obligation to any
                        third party.

                                2) In any Third Party Contract between NAI and
                        any of its Affiliates (an "AFFILIATE'S CONTRACT") NAI
                        shall reserve the right to terminate the contract at any
                        time, without cause, and without subjecting NAI to
                        liability for any Termination Fee (as defined below).
                        Further, NAI shall not enter into any Affiliate's
                        Contract that obligates NAI to pay more than would be
                        required under an arm's-length contract or that would
                        require NAI to pay its Affiliate any amount in excess of
                        the sum of actual, out-of-pocket direct costs and
                        internal labor costs incurred by the Affiliate to
                        perform such contract.

                                3) As necessary to limit the total Reimbursable
                        Third Party Contract Termination Fees (as defined below)
                        for which BNPLC may be required to provide Construction
                        Advances to no more than $8,000,000 (the "MAXIMUM
                        PERMITTED TERMINATION FEES"), NAI shall reserve in every
                        significant Third Party Contract an absolute express
                        right to terminate such contract at any time, without
                        cause. Although any Third Party Contract (other than an
                        Affiliate's Contract) may require NAI to pay a specified
                        Termination Fee in the event of such a termination, the

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                        specified Termination Fee must not exceed the difference
                        computed by subtracting (I) the aggregate of all
                        Termination Fees that have been paid or would become
                        payable by NAI if NAI terminated all other Third Party
                        Contracts, from (II) the Maximum Permitted Termination
                        Fees. Without limiting the foregoing, NAI will manage
                        and administer all Third Party Contracts as necessary to
                        ensure that, at any point in time, NAI can terminate all
                        such contracts without becoming liable for Termination
                        Fees in excess of the Maximum Permitted Termination
                        Fees.

                                4) As used in this Agreement, "TERMINATION FEE"
                        means any amount, however denominated, for which NAI
                        will be obligated under a Third Party Contract as a
                        result of any election or decision by NAI to terminate
                        such Third Party Contract, including demobilization
                        costs; provided, however, amounts payable for Prior Work
                        [as defined below] as of the date any such termination
                        are not intended to be characterized as Termination Fees
                        for purposes of this Agreement. If, as described in the
                        preceding paragraph, NAI reserves an absolute express
                        right in a Third Party Contract to terminate such
                        contract at any time, without cause, for a specified
                        dollar amount, such dollar amount will constitute a
                        Termination Fee. If no such right is reserved in a Third
                        Party Contract, the Termination Fee applicable to such
                        contract for purposes of this Agreement will be the
                        amount of damages that NAI could be required to pay (in
                        addition to payments required for Prior Work) upon an
                        anticipatory repudiation of the Third Party Contract by
                        NAI.

                        (c) Third Party Estoppels. If requested by BNPLC with
                respect to any material general construction contract between
                NAI and a third party contractor for any part of the Work, NAI
                shall cause the contractor to execute and deliver to BNPLC an
                estoppel letter substantially in the form of Exhibit C.
                Similarly, if requested by BNPLC with respect to any material
                architectural or engineering contract between NAI and a third
                party professional or firm for any part of the Work, NAI shall
                cause the professional or firm thereunder to execute and deliver
                to BNPLC an estoppel letter substantially in the form of Exhibit
                D.

                        (d) Adequacy of Drawings, Specifications and Budgets.
                BNPLC has made and will make no representations as to the
                adequacy of any budgets, site plans, renderings, plans, drawings
                or specifications for the Construction Project, and no
                modification of any such budgets, site plans, renderings, plans,
                drawings or specifications that may be required from time to
                time will entitle NAI to any adjustment in the Construction
                Allowance.

                        (e) Existing Condition of the Land and Improvements. NAI
                is familiar with the conditions of the Land and any existing
                Improvements on the Land. NAI shall have no claim for damages
                against BNPLC or for an increase in the Construction Allowance
                by reason of any condition (concealed or otherwise) of or
                affecting the Land or Improvements.

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                        (f) Correction of Defective Work. NAI will promptly
                correct all Work performed prior to any termination of this
                Agreement that does not comply with the requirements of this
                Agreement or that is otherwise defective (in either case,
                "DEFECTIVE WORK") at NAI's sole expense. If NAI fails to correct
                any Defective Work or fails to carry out Work in accordance with
                this Agreement, BNPLC may (but will not be required to) order
                NAI to stop all Work until the cause for such failure has been
                eliminated.

                        (g) Clean Up. Upon the completion of all Work, NAI will
                remove all waste material and rubbish from and about the Land,
                as well as all tools, construction equipment, machinery and
                surplus materials. NAI will keep the Land and the Improvements
                thereon in a reasonably safe and sightly condition as Work
                progresses.

                        (h) No Damage for Delays. NAI shall have no claim for
                damages against BNPLC or for an increase in the Construction
                Allowance by reason of any delay in the performance of any Work.

                        (i) No Fee For Construction Management. NAI shall have
                no claim for any fee or other compensation or for any
                reimbursement of internal administrative or overhead expenses of
                NAI under this Agreement, it being understood that NAI is
                executing this Agreement in consideration of the rights
                expressly granted to it herein and in the Improvements Lease.

                (3) Quality of Work. NAI shall cause the Work undertaken and
        administered by it pursuant to this Agreement to be performed (a) in a
        safe and good and workmanlike manner, (b) in accordance with Applicable
        Laws, (c) in compliance with (i) the provisions of this Agreement and
        the Improvements Lease, (ii) the material provisions of the Permitted
        Encumbrances and (iii) the material provisions of the Development
        Documents, and (d) in a manner that, taken as a whole, enhances the
        value of the Property commensurate with any Construction Advances and
        Carrying Costs added to the Outstanding Construction Allowance in
        connection therewith.

        (B) Completion Notices. NAI shall provide a notice (a "COMPLETION NOTICE
(BUILDING 6)") to BNPLC promptly after renovation of the portion of the
Improvements designated by NAI as "Building 6" are substantially complete and
ready for occupancy by NAI. Such notice will include a determination by NAI of
the amount of Stipulated Loss Value (Building 6), as defined in the Common
Definitions and Provisions Agreement, and of Stipulated Loss Value (Building
6/Land), as defined in the other Common Definitions and Provisions Agreement. In
addition, NAI shall provide a notice (a "COMPLETION NOTICE (BUILDING 6)") to
BNPLC promptly after construction of the Construction Project relating to the
portion of the Improvements designated by NAI as "Building 6" is substantially
complete, advising BNPLC of the substantial completion.

        NAI shall provide a notice (a "COMPLETION NOTICE (BUILDING 7)") to BNPLC
promptly after renovation of the portion of the Improvements designated by NAI
as "Building 7" are substantially complete and ready for occupancy by NAI. Such
notice will include a

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determination by NAI of the amount of Stipulated Loss Value (Building 7), as
defined in the Common Definitions and Provisions Agreement, and of Stipulated
Loss Value (Building 7/Land), as defined in the other Common Definitions and
Provisions Agreement. In addition, NAI shall provide a notice (a "COMPLETION
NOTICE (BUILDING 7)") to BNPLC promptly after construction of the Construction
Project relating to the portion of the Improvements designated by NAI as
"Building 7" is substantially complete, advising BNPLC of the substantial
completion.

        NAI shall provide a notice (a "COMPLETION NOTICE (BUILDING 8)") to BNPLC
promptly after renovation of the portion of the Improvements designated by NAI
as "Building 8" are substantially complete and ready for occupancy by NAI. Such
notice will include a determination by NAI of the amount of Stipulated Loss
Value (Building 8), as defined in the Common Definitions and Provisions
Agreement, and of Stipulated Loss Value (Building 8/Land), as defined in the
other Common Definitions and Provisions Agreement. In addition, NAI shall
provide a notice (a "COMPLETION NOTICE (BUILDING 8)") to BNPLC promptly after
construction of the Construction Project relating to the portion of the
Improvements designated by NAI as "Building 8" is substantially complete,
advising BNPLC of the substantial completion.

        2. CONSTRUCTION ADVANCES.

        (A) Costs Subject to Reimbursement Through Construction Advances.
Subject to the terms and conditions set forth herein, NAI shall be entitled to a
Construction Allowance, from which BNPLC will make Construction Advances on
Advance Dates from time to time to pay or reimburse NAI for the following costs
("REIMBURSABLE CONSTRUCTION-PERIOD COSTS") to the extent the following costs are
not already included in Prior Funding Advances:

               (1) the actual costs and expenses incurred or paid by NAI for
        arranging and the preparation, negotiation and execution of this
        Agreement and the other Operative Documents;

               (2) the cost of title insurance or other out-of-pocket expenses
        described in subparagraph 5(c)(iii) of the Improvements Lease or of the
        Other Lease Agreement to the extent paid by NAI prior to the Base Rent
        Commencement Date (All Buildings);

               (3) Commitment Fees;

               (4) costs of the Work, including not only hard costs incurred for
        the new Improvements described in Exhibit B, but also the following
        costs to the extent reasonably incurred in connection with the
        Construction Project:

                        -       soft costs, such as architectural fees,
                                engineering fees and fees and costs paid in
                                connection with obtaining project permits and
                                approvals required by governmental authorities
                                or the Development Documents,

                        -       site preparation costs, and

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<PAGE>   10

                        -       costs of offsite and other public improvements
                                required as conditions of governmental approvals
                                for the Construction Project;

               (5) the cost of maintaining insurance required by (and consistent
        with the requirements of) the Improvements Lease and the Other Lease
        Agreement prior to the Base Rent Commencement Date (All Buildings), and
        costs of repairing any damage to the Improvements caused by a
        Pre-commencement Casualty to the extent such costs are not covered by
        Escrowed Proceeds made available to NAI as provided in the Improvements
        Lease and the Other Lease Agreement prior to the Base Rent Commencement
        Date (All Buildings) ("REIMBURSABLE RESTORATION COSTS");

               (6) Impositions that accrue or become due under the Improvements
        Lease or the Other Lease Agreement prior to the Base Rent Commencement
        Date (All Buildings); and

               (7) except as otherwise provided in subparagraph 2(B) below,
        Termination Fees payable by NAI in connection with any Third Party
        Contract between NAI and a Person not an Affiliate of NAI because of any
        election by NAI to cancel or terminate such contract during a CMA
        Suspension Period (as defined below).

It is understood that $1,150,000 will be advanced as a Construction Advance to
or on behalf of NAI on the first Advance Date (October 16, 2000) to cover the
Arrangement Fee, legal fees of NAI and BNPLC related to the preparation and
negotiation of the Operative Documents, related appraisal fees, the fee payable
to Craig Lund and Associates for arranging the transactions contemplated by the
Operative Documents, and other costs.

In addition to other Construction Advances required by this subparagraph 2(A),
but subject to the other terms and conditions hereof, a Construction Advance
will be provided by BNPLC on the Base Rent Commencement Date (All Buildings) in
the form of additional Escrowed Proceeds (to be held and applied like other
Escrowed Proceeds pursuant to the Improvements Lease) equal to any reduction in
property insurance proceeds paid or payable with respect to the Property because
of a property insurance deductible permitted by Exhibit B attached to the
Improvements Lease, if:

               (I) damage to the Improvements has been caused by a
        Pre-commencement Casualty and, despite the exercise of reasonable
        diligence by NAI, NAI has been unable to complete the repair of such
        damage sufficiently in advance of the Base Rent Commencement Date (All
        Buildings) to allow the reimbursement to NAI hereunder of all
        Reimbursable Restoration Costs attributable to such property insurance
        deductible; and

               (II) at least five Business Days before the Base Rent
        Commencement Date (All Buildings), NAI has requested such additional
        Construction Advance by a notice in the form attached hereto as Exhibit
        E.

        (B) Exclusions From Reimbursable Construction-Period Costs.
Notwithstanding anything herein to the contrary, BNPLC shall not be required to
make any Construction Advance to pay or to reimburse or compensate NAI for any
of the following or any Absolute NAI

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<PAGE>   11

Construction Obligations required because of or in connection with or arising
out of any of the following:

               (1) Environmental Losses;

               (2) Losses that would not have been incurred but for any act or
        omission of NAI or of any NAI's contractors or subcontractors, which act
        or omission is contrary in any material respect to the other terms and
        conditions of this Agreement or to the terms and conditions of the other
        Operative Documents, during the period that this Agreement remains in
        force or during any other period that NAI remains in possession or
        control of the Construction Project pursuant to the Improvements Lease
        or otherwise;

               (3) Losses that would not have been incurred but for any fraud,
        misapplication of Construction Advances or other funds, illegal acts, or
        willful misconduct on the part of the NAI or its employees or agents or
        any other party for whom NAI is responsible; and

               (4) Losses that would not have been incurred but for any
        bankruptcy proceeding involving NAI.

For purposes of this subparagraph, "acts and omissions" described in clause (2)
preceding shall include (i) any decision by NAI to make any Scope Change without
the prior approval of BNPLC, (ii) any failure of NAI to maintain insurance
required by the Improvements Lease, the Other Lease Agreement or this Agreement,
(iii) any decision of NAI not to continue or complete Work because of a change
in NAI's facility needs or in NAI's plans to meet its facility needs (such as,
for example, a decision by NAI to lease or acquire another less expensive
facility as an alternative to the Improvements), (iv) any failure by NAI to
reserve termination rights in Third Party Contracts as required by subparagraph
1(A)(2)(b), and (v) any other material breach by NAI of this Agreement.

        (C) Conditions to NAI's Right to Receive Construction Advances. BNPLC's
obligation to provide Construction Advances to NAI from time to time under this
Agreement shall be subject to the following terms and conditions, all of which
terms and conditions are intended for the sole benefit of BNPLC, and none of
which terms and conditions shall limit in any way the right of BNPLC to treat
costs or expenditures incurred or paid by or on behalf of it as Construction
Advances pursuant to subparagraph 6(d) of the Improvements Lease:

               (1) Construction Advance Requests. NAI must make a written
        request (a "CONSTRUCTION ADVANCE REQUEST") for any Construction Advance,
        specifying the amount of such advance, at least five Business Days prior
        to the Advance Date upon which the advance is to be paid. To be
        effective for purposes of this Agreement, a Construction Advance Request
        must be in substantially the form attached as Exhibit F. NAI shall not
        submit more than one Construction Advance Request in any calendar month.

               (2) Amount of the Advances.

                      (a) Limit Dependent Upon the Maximum Construction
               Allowance. NAI shall not be entitled to require any Construction
               Advance that would cause the

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<PAGE>   12

               Funded Construction Allowance to exceed the Maximum Construction
               Allowance.

                      (b) Limit Dependent Upon Costs Previously Incurred by NAI.
               NAI shall not be entitled to require any Construction Advance -
               other than a final additional Construction Advance required on
               the Base Rent Commencement Date (All Buildings) because of a
               permitted property insurance deductible related to a
               Pre-commencement Casualty as described in subparagraph 2(A) above
               - that would cause the aggregate of all Construction Advances to
               exceed the sum of:

                                (i)     Reimbursable Construction-Period Costs
                                        that NAI has, to the reasonable
                                        satisfaction of BNPLC, substantiated as
                                        having been paid or incurred by NAI
                                        other than for Work (e.g., Impositions),
                                        plus

                                (ii)    the Reimbursable Construction-Period
                                        Costs that NAI has, to the reasonable
                                        satisfaction of BNPLC, substantiated as
                                        having been paid or incurred for Prior
                                        Work as of the date of the Construction
                                        Advance Request requesting the advance.

As used in this Agreement, "PRIOR WORK" means all labor and services actually
performed, and all materials actually delivered to the construction site, in
accordance with this Agreement prior to the date in question as part of the
Work, and "FUTURE WORK" means labor and services performed or to be performed,
and materials delivered or to be delivered, after the date in question as part
of the Work. For purposes of this Agreement, NAI and BNPLC intend to allocate
Reimbursable Construction-Period Costs between Prior Work and Future Work in a
manner that is generally consistent with the allocations expressed or implied in
construction-related contracts negotiated in good faith between NAI and third
parties not affiliated with NAI (e.g., a general contractor); however, in order
to verify the amount of Reimbursable Construction-Period Costs actually paid or
incurred by NAI and the proper allocation thereof between Prior Work and Future
Work, BNPLC shall be entitled (but not required) to: (x) request, receive and
review copies of such agreements between NAI and third parties and of draw
requests, budgets or other supporting documents provided to NAI in connection
with or pursuant to such agreements as evidence of the allocations expressed or
implied therein, (y) from time to time engage one or more independent inspecting
architects, certified public accountants or other appropriate professional
consultants and, absent manifest error, rely without further investigation upon
their reports and recommendations, and (z) without waiving BNPLC's right to
challenge or verify allocations required with respect to future Construction
Advances, rely without investigation upon the accuracy of NAI's own Construction
Advance Requests.

                      (c) Limit During Suspension Period. Without limiting the
               other terms and conditions imposed by this Agreement for the
               benefit of BNPLC with respect all Construction Advances, BNPLC
               shall have no obligation to make any Construction Advance during
               any CMA Suspension Period (as defined below) that would cause the
               aggregate of all Construction Advances to exceed the sum of:

                                       9
<PAGE>   13

                                (i) Reimbursable Construction-Period Costs that
                                NAI has, to the reasonable satisfaction of
                                BNPLC, substantiated as having been paid or
                                incurred by NAI other than for Work (e.g.,
                                Impositions), plus

                                (ii) the Reimbursable Construction-Period Costs
                                that NAI has, to the reasonable satisfaction of
                                BNPLC, substantiated as having been paid or
                                incurred for Prior Work (as defined below) as of
                                the date the CMA Suspension Period commenced.

For purposes of computing the limits described in this subparagraph 2(C)(2)(c),
Reimbursable Construction-Period Costs "other than for Work" shall include
Termination Fees that qualify as Reimbursable Construction-Period Costs pursuant
to subparagraph 2(A)(7) ("REIMBURSABLE THIRD PARTY CONTRACT TERMINATION FEES").
NAI acknowledges, however, that Termination Fees will not exceed the Maximum
Permitted Termination Fees, so long as NAI complies with the requirements of
subparagraph l(A)(2)(b). That is, but for an "act or omission of NAI" as such
phrase is used in subparagraph 2(B)(2), the aggregate of all Termination Fees
shall not exceed the Maximum Permitted Termination Fees. Accordingly, if the
aggregate of any Termination Fees do exceed the Maximum Permitted Termination
Fees, the excess shall not qualify as Reimbursable Third Party Contract
Termination Fees.

                      (d) Restrictions Imposed for Administrative Convenience.
               NAI shall not request any Construction Advance (other than the
               final Construction Advance NAI intends to request) for an amount
               less than $500,000.

               (3) No Advances After Certain Dates. BNPLC shall have no
        obligation to make any Construction Advance (x) after the Base Rent
        Commencement Date (All Buildings), (y) on or after the Designated Sale
        Date, or (z) on or after the date of any termination of this Agreement
        pursuant to subparagraph 4(D) or subparagraph 4(E).

        (D) Breakage Costs for Construction Advances Requested But Not Taken. If
NAI requests but thereafter declines to accept any Construction Advance, or if
NAI requests a Construction Advance that it is not permitted to take because of
its failure to satisfy any of the conditions specified in subparagraph 2(C), NAI
shall pay upon demand any resulting Breakage Costs.

        (E) No Third Party Beneficiaries. No contractor or other third party
shall be entitled to require BNPLC to make advances as a third party beneficiary
of this Agreement or of the Improvements Lease or otherwise.

        (F) No Waiver. No funding of Construction Advances and no failure of
BNPLC to object to any Work proposed or performed by or for NAI shall constitute
a waiver by BNPLC of the requirements contained in this Agreement.

        (G) Funding by Participants. NAI acknowledges that, as provided in the
Participation Agreement, each Participant has agreed to pay to BNPLC a
Percentage (under and as defined in the Participation Agreement) of the
Construction Advances required by this Agreement. NAI also acknowledges that
BNPLC will not be responsible to NAI for any failure of any Participant to
provide advances required by the Participation Agreement. So long as any
Participant fails

                                       10
<PAGE>   14

to provide its Percentage of any requested Construction Advance, then the amount
of the Construction Advance for which BNPLC shall be obligated hereunder shall
be reduced by the amount that the Participant should have provided, but failed
to provide, in accordance with the Participation Agreement. No such reduction,
however, of BNPLC's obligation hereunder shall release or impair the obligation
of the Participant directly to NAI, created by NAI's status as a third party
beneficiary of the Participant's commitment under the Participation Agreement to
provide the Participant's Percentage of Construction Advances. Further, any such
failure shall excuse BNPLC's obligation to provide the requested Construction
Advance only to the extent of the funds that the applicable Participant or
Participants should have advanced (but did not advance) to BNPLC, and in the
event of any such failure:

                      (1) BNPLC will immediately notify NAI, but BNPLC will not
        in any event be liable to NAI for BNPLC's failure to do so.

                      (2) BNPLC will to the extent possible postpone reductions
        of Construction Advances because of the failure by any one or more
        Participants ("DEFAULTING PARTICIPANTS") to make required advances under
        the Participation Agreement (a "PARTICIPANT DEFAULT") by adjusting (and
        readjusting from time to time, as required) the funding "Percentages" of
        other Participants, and by requesting the other Participants to make
        advances to BNPLC on the basis of such adjusted Percentages, in each
        case as provided in the Participation Agreement; however, so long as a
        Participant Default continues, no Construction Advance shall be required
        that would cause the Outstanding Construction Allowance to exceed (1)
        the Maximum Construction Allowance available under this Agreement, less
        (2) all amounts that should have been, but because of a continuing
        Participant Default have not been, advanced by any one or more of the
        Participants to BNPLC under the Participation Agreement with respect to
        Construction Advances.

                      (3) Further, after a Participant Default, and so long as
        no CMA Termination Event (as defined below) has occurred and no Event of
        Default has occurred and is continuing, BNPLC shall do the following as
        reasonably requested by NAI, provided that nothing in this provision
        shall require BNPLC to take any action that would violate Applicable
        Laws, that would constitute a breach of BNPLC's obligations under the
        Participation Agreement, or that would require BNPLC to waive any rights
        or remedies it has under this Agreement or other Operative Documents:

                       (a) BNPLC shall promptly make a written demand upon the
               Defaulting Participants for the cure of the Participant Default,
               and

                       (b) BNPLC shall not unreasonably withhold its approval
               for the substitution of any new participant proposed by NAI for
               Defaulting Participants, if (A) the proposed substitution does
               not require BNPLC to waive rights against the Defaulting
               Participants, (B) the new participant will agree (by executing
               supplement to the Participation Agreement as provided in the
               Participation Agreement) to provide funds to replace the
               payments that would otherwise be required of the Defaulting
               Participants with respect to future Construction

                                       11
<PAGE>   15

               Advances, (C) the new participant (or NAI) provides the funds
               (if any) needed to terminate the Defaulting Participants, rights
               to receive payments of "Net Cash Flow" (as defined in the
               Participation Agreement) that BNPLC will be required to pay the
               new participant under the terms of the substitution reasonably
               proposed by NAI, (D) the new participant (or NAI) provides and
               agrees in writing to provide funds needed to reimburse BNPLC for
               any and all Losses incurred by BNPLC in connection with or
               because of the substitution of the new participant for the
               Defaulting Participants, including any cost of defending and
               paying any claim asserted by Defaulting Participants because of
               the substitution (but not including any liability of BNPLC to
               the Defaulting Participants for damages caused by BNPLC's bad
               faith or gross negligence in the performance of BNPLC's
               obligations to the Defaulting Participants), (E) the obligations
               of BNPLC to the new participant per dollar of the new
               participant's "investment" (it being understood that such
               investment will be computed in a manner consistent with the
               examples set forth in Exhibit A to the Participation Agreement,
               but net of reimbursements to BNPLC under clause (D) preceding)
               shall not exceed the obligations per dollar of investment by the
               Defaulting Participants that BNPLC would have had to the
               Defaulting Participants if there had been no Participant
               Default, and (F) the new participant shall be a reputable
               financial institution having a net worth of no less than seven
               and one half percent (7.5 %) of total assets and total assets of
               no less than $10,000,000,000.00 (all according to then recent
               audited financial statements).

        3.     COST OVERRUNS.

        (A) Definition of Projected Cost Overruns. As used in this Agreement,
"PROJECTED COST OVERRUNS" shall mean the excess (if any), calculated as of the
date of each Construction Advance Request, of (1) the total of projected
Reimbursable Construction-Period Costs yet to be incurred or for which NAI has
yet to be reimbursed hereunder (including projected Reimbursable
Construction-Period Costs for Future Work), over (2) the sum of a) any Voluntary
Construction Contribution NAI has committed to pay as provided in subparagraph
3(C), but has yet to pay, plus b) the balance of the remaining Construction
Allowance then projected to be available to cover such costs. The balance of the
remaining Construction Allowance then projected to be available will equal (i)
the amount (if any) by which the Maximum Construction Allowance exceeds the
Funded Construction Allowance, less (ii) the sum of (a) projected future
Carrying Costs, plus (b) any funds that should have been but were not advanced
to BNPLC by any Defaulting Participants under (and as defined in) the
Participation Agreement.

        (B) Notice of Projected Cost Overruns. If for any reason (including any
damage to the Property by fire or other casualty or any taking of any part of
the Property by condemnation) NAI believes (after taking into account any
Voluntary NAI Construction Contributions NAI has made or committed to make as
provided in subparagraph 3(C)) that Projected Cost Overruns are more likely than
not at the time NAI submits any Construction Advance Request, NAI shall state
such belief in the Construction Advance Request and, if NAI can reasonably do
so, NAI will estimate the approximate amount of such Projected Cost Overruns.

                                       12
<PAGE>   16

        (C) Election to Make a Voluntary NAI Construction Contribution. As used
in this Agreement, "VOLUNTARY NAI CONSTRUCTION CONTRIBUTION" shall mean a
voluntary, nonrefundable payment made to BNPLC by NAI prior to the Base Rent
Commencement Date (All Buildings) and delivered with or pursuant to a notice in
the form of Exhibit G, confirming that a Voluntary NAI Construction Contribution
is being paid or will be paid pursuant to this subparagraph. To prevent the
occurrence of or to cure any CMA Suspension Event described in subparagraph
4(A)(1), NAI shall be entitled (but not obligated) to make or commit to make a
Voluntary NAI Construction Contribution in addition to (and, except as provided
in the definition of Issue 9710 Prepayment in the Common Definitions and
Provisions Agreement (Phase IV - Improvements), without reducing or excusing)
any other amounts then due from NAI to BNPLC pursuant to the Operative
Documents. Like other Qualified Prepayments, any Voluntary NAI Construction
Contribution will reduce the Outstanding Construction Allowance as described in
the definition thereof in the Common Definitions and Provisions Agreement (Phase
IV - Improvements). In contrast, however, to other Qualified Prepayments,
Voluntary NAI Construction Contributions will be subtracted for purposes of
calculating the Funded Construction Allowance and, thus, will effectively
increase the subsequent Construction Advances available under the limit
established by subparagraph 2(C)(2)(a).

        4.     SUSPENSION AND TERMINATION.

        (A) CMA Suspension Events. Each of the following events shall be a "CMA
SUSPENSION EVENT" under this Agreement:

               (1) Projection of Cost Overruns. Either (a) BNPLC shall receive
        any Construction Advance Request stating that NAI believes Projected
        Cost Overruns are more likely than not, as provided in subparagraph
        3(B), or (b) (i) BNPLC shall otherwise determine in good faith that
        significant Projected Cost Overruns are likely (taking into account any
        failure of a Defaulting Participant to provide funds to BNPLC as
        required by the Participation Agreement and any prior Voluntary NAI
        Construction Contributions NAI has made or committed to make as provided
        in subparagraph 3(C)), (ii) BNPLC shall notify NAI of such determination
        and the basis therefor, and (iii) NAI shall fail to give any notice
        pursuant to subparagraph 3(C) that, by committing NAI to make or
        increase Voluntary NAI Construction Contributions, effectively
        eliminates the likelihood of the Projected Cost Overruns on or before
        five Business Days after BNPLC's notice to NAI of such determination.

               (2) Interruption of Construction . The Construction Project
        shall, for any reason after Work commences (including any damage to the
        Property by fire or other casualty or any taking of any part of the
        Property by condemnation), no longer be substantially progressing (and
        shall not have progressed in any substantial way during the preceding
        forty-five days), in a good and workmanlike manner and substantially in
        accordance with Applicable Laws, with Permitted Encumbrances, with
        Development Documents and with the requirements of this Agreement.

               (3) Failure of NAI to Correct Defective Work. NAI shall fail to
        diligently pursue the correction of any Defective Work of which NAI has
        received notice.

                                       13
<PAGE>   17

               (4) Failure of NAI to Provide Evidence of Costs and Expenses.
        BNPLC shall have requested, and NAI shall have failed to provide within
        ten Business Days after receipt of the request, with respect to any
        Construction Advance: (1) invoices, requests for payment from
        contractors and other evidence reasonably establishing that the costs
        and expenses for which NAI has requested or is requesting reimbursement
        constitute actual Reimbursable Construction-Period Costs, and (2)
        canceled checks, lien waivers and other evidence reasonably establishing
        that all prior Construction Advances have been used by NAI to pay, and
        only to pay, the Reimbursable Construction-Period Costs for which the
        prior advances were requested and made.

        (B)    FOCB Notices, Preemptive Notices and CMA Termination Events.

               (1) As used herein, "FOCB NOTICE" means a notice from BNPLC to
        NAI that BNPLC is considering a termination of this Agreement pursuant
        to subparagraph 4(E) below, provided that the notice is given prior to
        BNPLC's receipt from NAI of a Completion Notice and is given when:

                      (a) any Event of Default has occurred and is continuing;
               or

                      (b) any CMA Suspension Event shall have occurred, NAI
               shall have received notice of such CMA Suspension Event (a "CMA
               SUSPENSION NOTICE") and the CMA Suspension Event shall have
               continued for thirty days after NAI's receipt of such notice; or

                      (c) NAI shall have failed to maintain the following
               insurance, or to provide insurance certificates to BNPLC as
               required by the Improvements Lease with respect to the following
               insurance, and such failure shall have continued for a period of
               five Business Days after any notice to NAI thereof:

                               5) property insurance as required by the
                       Improvements Lease, including builder's completed value
                       risk insurance as BNPLC may require to protect BNPLC's
                       and NAI's interests in the Improvements under
                       construction against risks of physical loss, such
                       insurance to be maintained by NAI at all times until
                       completion of the Construction Project; and

                               6) commercial general liability insurance as
                       required by the Improvements Lease.

               (2) As used herein, "PREEMPTIVE NOTICE" means a notice from NAI
        to BNPLC in the form attached hereto as Exhibit H, given after BNPLC has
        given any FOCB Notice, but before NAI has made any Issue 97-10 Election,
        that is sufficient and effective under clause (2) of the definition of
        Designated Sale Date in the Common Definitions and Provisions Agreement
        (Phase IV - Improvements) to accelerate the Designated Sale Date to a
        date that is less than ninety days after the date of BNPLC's FOCB
        Notice.

               (3) For purposes of this Agreement and the other Operative
        Documents, "CMA TERMINATION EVENT" shall mean:

                                       14
<PAGE>   18

                      (a) BNPLC's receipt of a Notice of NAI's Intent to
               Terminate (as defined below);

                      or

                      (b) A failure of NAI for any reason whatsoever to deliver
               a duly executed, effective Preemptive Notice within thirty days
               after NAI's receipt of an FOCB Notice.

        (C) Rights and Obligations of NAI During a CMA Suspension Period. As
used herein, "CMA SUSPENSION PERIOD" shall mean any period (1) beginning with
the date of any CMA Suspension Notice, FOCB Notice or Notice of NAI's Intent to
Terminate, and (2) ending on the earlier of (a) the first date upon which (i) no
CMA Suspension Events shall be continuing, and (ii) no CMA Termination Events
shall have occurred, or (b) the effective date of any termination of this
Agreement as described in subparagraph 4(D) or subparagraph 4(E). During any CMA
Suspension Period, NAI shall have the right to suspend the Work; provided,
however, the obligations of NAI which are to survive any termination of this
Agreement shall also continue and survive during any such suspension of the
Work.

        (D) Election by NAI to Terminate. NAI may elect to terminate this
Agreement at any time prior to the Base Rent Commencement Date (All Buildings)
when NAI has determined that (1) the Construction Advances to be provided to it
hereunder will not be sufficient to cover all Reimbursable Construction-Period
Costs, whether because the cost of the Work exceeds budgeted expectations
(resulting in Projected Cost Overruns), because of damage to the Property by
fire or other casualty (other than damage that would not have occurred, or been
uninsured or under-insured, but for an act or omission of NAI), because of a
taking of any part of the Property by condemnation, or because NAI can no longer
satisfy conditions to BNPLC's obligation to provide Construction Advances
herein, or (2) the Construction Project cannot be substantially completed before
the Base Rent Commencement Date (All Buildings) for reasons other than a breach
by NAI of this Agreement. To be effective, however, any such election to
terminate this Agreement must be made by giving BNPLC and the Participants a
notice thereof prior to the Base Rent Commencement Date (All Buildings) in the
form of Exhibit I (a "NOTICE OF NAI'S INTENT TO TERMINATE"), stating that NAI
intends to terminate this Agreement pursuant to this subparagraph on a date
specified therein, which date is not less than thirty days after the date of
such notice. Unless terminated sooner pursuant to subparagraph 4(E), this
Agreement will automatically terminate on the effective date so specified in any
Notice of NAI's Intent to Terminate.

        (E) BNPLC's Right to Terminate. BNPLC shall be entitled to terminate
this Agreement at any time (x) more than ninety days after BNPLC has given an
FOCB Notice as described in subparagraph 4(B)(1) (regardless of whether at the
time of such termination by BNPLC an Event of Default or other event or
circumstance described in subparagraph 4(B)(1) is continuing), provided that
BNPLC shall not have received an effective Preemptive Notice within thirty days
after its delivery of the FOCB Notice to NAI, (y) after the Designated Sale
Date, or (z) after BNPLC's receipt of a Notice of NAI's Intent to Terminate.

                                       15
<PAGE>   19

        (F) Rights and Obligations Surviving Termination. Following any
termination of this Agreement as provided in subparagraph 4(D) or in 4(E), NAI
shall have no obligation to continue or complete any Work; provided, however, no
termination of this Agreement shall reduce or excuse the following rights and
obligations of the parties, it being intended that all such rights and
obligations shall survive and continue after any such termination:

               (1) the rights and obligations of NAI and BNPLC under the other
        Operative Documents, including Absolute NAI Construction Obligations
        imposed upon NAI by the Improvements Lease; and

               (2)    NAI's obligations described in the next subparagraph 4(G).

        (G) Cooperation by NAI Following Any Termination. After any termination
of this Agreement as provided in subparagraph 4(D) or subparagraph 4(E), NAI
shall comply with the following terms and conditions, all of which shall survive
any such termination:

               (1) NAI shall promptly deliver copies to BNPLC of all Third Party
        Contracts and purchase orders made by NAI in the performance of or in
        connection with the Work, together with all plans, drawings,
        specifications, bonds and other materials relating to the Work in NAI's
        possession, including all papers and documents relating to governmental
        permits, orders placed, bills and invoices, lien releases and financial
        management under this Agreement. All such deliveries shall be made free
        and clear of any liens, security interests, or encumbrances, except such
        as may be created by the Operative Documents.

               (2) Promptly after any request from BNPLC made with respect to
        any Third Party Contract, NAI shall deliver a letter confirming: (i)
        that NAI has not performed any act or executed any other instrument
        which invalidates or modifies such contract in whole or in part (or, if
        so, the nature of such modification); (ii) the extent to which such
        contract is valid and subsisting and in full force and effect; (iii)
        that there are no defaults or events of default then existing under such
        contract and, to NAI's knowledge, no event has occurred which with the
        passage of time or the giving of notice, or both, would constitute such
        a default or event of default (or, if there is a default, the nature of
        such default in detail); (iv) that the services and construction
        contemplated by such contract is proceeding in a satisfactory manner in
        all material respects (or if not, a detailed description of all
        significant problems with the progress of the services or construction);
        (v) in reasonable detail the then critical dates projected by NAI for
        work and deliveries required by such contract; (vi) the total amount
        received by the other party to such contract for work or services
        provided by the other party through the date of the letter; (vii) the
        estimated total cost of completing the services and work contemplated
        under such contract as of the date of the letter, together with any
        current draw or payment schedule for the contract; and (viii) any other
        information BNPLC may reasonably request to allow it to decide what
        steps it should take concerning the contract within BNPLC's rights under
        this Agreement and the other Operative Documents.

               (3) NAI will make every reasonable effort, as and to the extent
        requested by BNPLC, to secure the cancellation of any then existing
        Third Party Contract upon terms satisfactory to BNPLC. NAI shall bear
        any cancellation fees or other Losses resulting

                                       16
<PAGE>   20

        from any cancellation of a Third Party Contract after the effective date
        of a termination of this Agreement.

               (4) NAI will make every reasonable effort, as and to the extent
        requested by BNPLC, to secure any required consents or approvals for an
        assignment of any then existing Third Party Contract to BNPLC or its
        designee, upon terms satisfactory to BNPLC. To the extent assignable,
        any Third Party Contract will be assigned by NAI to BNPLC upon request.

               (5) If NAI has canceled any Third Party Contract before and in
        anticipation of a termination of this Agreement, NAI shall make every
        reasonable effort, as and to the extent requested by BNPLC, to secure a
        reinstatement of such Third Party Contract in favor of BNPLC and upon
        terms satisfactory to BNPLC.

               (6) For a period not to exceed ten days after the termination NAI
        shall take such steps as are reasonably necessary to preserve and
        protect Work completed and in progress and to protect materials,
        equipment, and supplies at the Property or in transit.

                                       17
<PAGE>   21


        IN WITNESS WHEREOF, NAI and BNPLC have caused this Construction
Management Agreement to be executed effective as of October 2, 2000.


                                     "NAI"

                                     NETWORK APPLIANCE, INC.

                                     By:
                                        ----------------------------------------
                                     Name:
                                          --------------------------------------
                                     Title:
                                            -----------------------------------

                                       18
<PAGE>   22


[Continuation of signature pages to Construction Management Agreement (Phase IV
- Improvements) dated to be effective October 2, 2000]

                            "BNPLC"

                             BNP LEASING CORPORATION

                             By:
                                -----------------------------------------------
                                      Lloyd Cox, Senior Vice President

                                       19
<PAGE>   23

                                    Exhibit A

                                LEGAL DESCRIPTION

The real property located in the City of Sunnyvale, County of Santa Clara, State
of California, described as follows:

TRACT 1:

All of Parcel 2, as shown upon that certain Map entitled, "Parcel Map lying
within the City of Sunnyvale, being a resubdivision of a portion of Parcel B, as
shown upon that certain Parcel Map recorded in Book 345 of Maps, at page 20,
Santa Clara County Records", which Map was filed for record in the Office of the
Recorder of the County of Santa Clara, State of California on November 17, 1976,
in Book 383 of Maps, at page 35.

TRACT 2:

Together with an easement for vehicles parking over the following described
property:

A 7-foot strip of land for parking easement purposes over a portion of Parcel A,
as said Parcel A is shown on that certain Parcel Map filed for record on
November 10, 1974 in Book 292 of Maps, at page 41, records of said County, and
being more particularly described as follows:

Commencing at the Northeast corner of said Parcel A; thence North
75(degrees)8'27" West 500.00 feet along the Northeasterly line of said Parcel A;
thence South 14(degrees)51'33" West 7.00 feet; thence parallel to Northeasterly
line of said Parcel A, South 75(degrees)08'27" East 500.00 feet to the Southeast
line of said Parcel A, North 14(degrees)51'33" East 7.00 feet to the point of
beginning.

APN: 110-32-002
ARB: 110-3-65.02

TRACT 3:

Parcel 1, as shown on that certain Parcel Map which filed for record in the
office of the recorder of the County of Santa Clara, State of California on July
7, 1994, in Book 657 of Parcel Maps, Page 9.

APN: 110-32-6
ARB: 110-3-x65

TRACT 4:

Parcel 2, as shown on that certain Parcel Map which filed for record in the
office of the recorder of the County of Santa Clara, State of California on July
7, 1994, in Book 657 of Parcel Maps, Page 9.



<PAGE>   24





APN: 110-32-7
ARB: 110-3-x65

TRACT 5:

Parcel 2, as shown on that certain parcel Map which filed for record in the
office of the recorder of the County of Santa Clara, State of California on
October 7, 1998, in Book 708 of Parcel Maps, Pages 51 and 52.

APN: 110-32-12
ARB: 110-03-65.11


                               Exhibit A - Page 2
<PAGE>   25





                                    Exhibit B

                     DESCRIPTION OF THE CONSTRUCTION PROJECT

        Subject to future Scope Changes, the Construction Project will be
substantially consistent with the general description set out in the excerpts
from an appraisal prepared for BNPLC which are attached to this Exhibit and with
the Site Plan which is attached to this Exhibit.

        In addition to the Site Plan, the following summarizes excerpts taken
from an appraisal prepared for BNPLC which summarizes information about the
Improvements:

        The improvements will consist of Phase IV improvements, consisting of
        (a) the construction of one three-story office/research and development
        building, known as Building 6, located on the southeast corner of the
        Land, containing approximately 121,355 square feet, together with
        related parking and other facilities, (b) the construction of one
        three-story office/research and development building, known as Building
        7, located to the north of Building 6, containing approximately 121,355
        square feet, together with related parking and other facilities, and (c)
        the construction of one three-story office/research and development
        building, known as Building 8, located on the northeast corner of the
        Land, on the corner of Crossman Avenue and Caribbean Drive, containing
        approximately 121,355 square feet, together with related parking and
        other facilities.

        Each of the buildings will be of Type II, Fire Resistive construction.

Also, it is understood that buildings presently on the Land where the new
buildings are shown on the Site Plan will be demolished and removed as part of
the Construction Project.



<PAGE>   26

                                    Exhibit C

                            ESTOPPEL FROM CONTRACTOR

                                _________, 200___


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

        Re:    Assignment of Construction Contract

Ladies and Gentlemen:

        The undersigned hereby represents to BNP LEASING CORPORATION, a Delaware
corporation ("BNPLC"),and covenants with BNPLC as follows:

        1. The undersigned has entered into that certain [Construction Contract]
(the "CONSTRUCTION CONTRACT") by and between the undersigned and Network
Appliance, Inc. ("NAI") dated _____, ___ for the construction of the
improvements to be constructed as part of NAI's Sunnyvale campus leased by NAI
(the "IMPROVEMENTS") on the land described in the Improvements Lease Documents
described below (the "LAND" and, together with the Improvements and any other
improvements now on or constructed in the future on the Land, the "PROJECT").

        2. The undersigned has been advised that, by a Lease Agreement (Phase IV
- Improvements) and a Construction Management Agreement (Phase IV -
Improvements), both dated as of October 2, 2000 (collectively, the "IMPROVEMENTS
LEASE DOCUMENTS"), BNPLC is leasing the Project to NAI and has agreed, subject
to the terms and conditions of the Improvements Lease Documents, to provide a
construction allowance for the design and construction of the Improvements. The
undersigned has also been advised that the Improvements Lease Documents
expressly provide that third parties (including the undersigned) are not
intended as beneficiaries of the Improvements Lease Documents and, thus, will
have no standing to enforce any obligations of NAI or BNPLC under the
Improvements Lease Documents, including any such obligation that BNPLC may have
to provide the construction allowance. The undersigned understands that the
Improvements Lease Documents expressly provide that NAI is not authorized to
enter into any construction contract or other agreement with any third party in
the name of BNPLC or to otherwise bind BNPLC to any contract with a third party.

        3. A complete and correct copy of the Construction Contract is attached
to this letter. The Construction Contract is in full force and effect and has
not been modified or amended, except as provided in any written modifications or
amendments which are also attached to this letter.



<PAGE>   27

BNP Leasing Corporation
__________, 200_
Page 2

        4. The undersigned has not sent or received any notice of default or any
other notice for the purpose of terminating the Construction Contract, nor does
the undesigned have knowledge of any existing circumstance or event which, but
for the elapse of time or otherwise, would constitute a default by the
undersigned or by NAI under the Construction Contract.

        The undersigned acknowledges and agrees that:

        a) Title to all Improvements shall, when constructed on the Land, pass
directly to BNPLC, not to NAI. BNPLC shall not, however, be held liable for, and
the undersigned shall not assert, any claims, demands or liabilities against
BNPLC arising under or in any way relating to the Construction Contract;
provided, this paragraph will not (1) be construed as a waiver of any statutory
mechanic's or materialmen's liens against the interests of NAI in and to the
Land or the improvements thereon that may otherwise exist or arise in favor of
the undersigned, or (2) prohibit the undersigned from asserting any claims or
making demands against BNPLC under the Construction Contract if BNPLC elects in
writing, pursuant to paragraph b) below, to assume the Construction Contract in
the event NAI's right to possession of the Land is terminated, it being
understood that in the event of such an assumption BNPLC shall be liable for the
unpaid balance of the contract sum due for the work of the undersigned, payable
pursuant to (and subject to the terms and conditions set forth for the benefit
of the owner in) the Construction Contract, but in no event shall BNPLC
otherwise be personally liable for any acts or omissions on the part of NAI.

        b) Upon any termination of NAI's right to possession of the Project
under the Improvements Lease Documents, including any eviction of NAI resulting
from an Event of Default (as defined in the Improvements Lease Documents), BNPLC
shall be entitled (but not obligated), by notice to the undersigned and without
the necessity of the execution of any other document, to assume NAI's rights and
obligations under the Construction Contract, cure any defaults by NAI thereunder
and enforce the Construction Contract and all rights of NAI thereunder. Within
ten days of receiving notice from BNPLC that NAI's right to possession has been
terminated, the undersigned shall send to BNPLC a written estoppel letter
stating: (i) that the undersigned has not performed any act or executed any
other instrument which invalidates or modifies the Construction Contract in
whole or in part (or, if so, the nature of such modification); (ii) that the
Construction Contract is valid and subsisting and in full force and effect;
(iii) that there are no defaults or events of default then existing under the
Construction Contract and no event has occurred which with the passage of time
or the giving of notice, or both, would constitute such a default or event of
default (or, if there is a default, the nature of such default in detail); (iv)
that the construction contemplated by the Construction Contract is proceeding in
a satisfactory manner in all material respects (or if not, a detailed
description of all significant problems with the progress of construction); (v)
a reasonably detailed report of the then critical dates projected by the
undersigned for work and deliveries required to complete the Project; (vi) the
total amount received by the undersigned for construction through the date of
the letter; (vii) the estimated total cost of completing the undersigned's work
as of the date of the letter, together with a current draw schedule; and (viii)
any other information BNPLC may request to allow it to decide whether to assume
the Construction Contract. BNPLC shall have seven days from receipt


                               Exhibit C - Page 2
<PAGE>   28

BNP Leasing Corporation
__________, 200_
Page 3

of such written certificate containing all such requested information to decide
whether to assume the Construction Contract. If BNPLC fails to assume the
Construction Contract within such time, the undersigned agrees that BNPLC shall
not be liable (and the undersigned shall not assert or bring any action against
BNPLC, except to enforce statutory lien rights, if any, of the undersigned
against the Land or improvements on the Land) for any damages or other amounts
resulting from the breach or termination of the Construction Contract or under
any other theory of liability of any kind or nature, but rather the undersigned
shall look solely to NAI (and statutory lien rights, if any, of the undersigned
against the Land and any improvements thereon) for the recovery of any such
damages or other amounts.

        c) If BNPLC notifies the undersigned that BNPLC shall not assume the
Construction Contract pursuant to the preceding paragraph following the
termination of NAI's right to possession of the Project under the Improvements
Lease Documents, the undersigned shall immediately discontinue the work under
the Construction Contract and remove its personnel from the Project, and BNPLC
shall be entitled to take exclusive possession of the Project. The undersigned
shall also, upon request by BNPLC, deliver and assign to BNPLC all plans and
specifications and other contract documents previously delivered to the
undersigned (except that the undersigned may keep an original set of the
Construction Contract and other contract documents executed by NAI), all other
material relating to the work which belongs to BNPLC or NAI, and all papers and
documents relating to governmental permits, orders placed, bills and invoices,
lien releases and financial management under the Construction Contract.
Notwithstanding the undersigned's receipt of any notice from BNPLC that BNPLC
declines to assume the Construction Contract, the undersigned shall for a period
not to exceed fifteen days after receipt of such notice take such steps, at
BNPLC's expense, as are reasonably necessary to preserve and protect work
completed and in progress and to protect materials, equipment and supplies at
the site or in transit.

        d) If the Construction Contract is terminated by NAI before BNPLC is
given the opportunity to elect whether or not to assume the Construction
Contract as provided herein, BNPLC shall nonetheless have the right hereunder to
assume the Construction Contract, as if it had not been terminated, upon any
termination of NAI's right to possession of the Project under the Improvements
Lease Documents; provided, however, that if the work of the undersigned under
the Construction Contract has been disrupted because of NAI's termination of the
Construction Contract, the undersigned shall be entitled to an equitable
adjustment to the price of the Construction Contract, following any assumption
thereof by BNPLC, for the additional costs incurred by the undersigned
attributable to the disruption; and, provided further that if BNPLC does assume
the Construction Contract, BNPLC shall receive a credit against the price of the
Construction Contract for any consideration paid to the undersigned by NAI
because of NAI's prior termination of the Construction Contract (whether such
consideration is designated a termination fee, settlement payment or otherwise).

        e) No action taken by BNPLC or the undersigned with respect to the
Construction Contract shall prejudice any other rights or remedies of BNPLC or
the undersigned provided by


                               Exhibit C - Page 3
<PAGE>   29
BNP Leasing Corporation
__________, 200_
Page 4


law, by the Improvements Lease Documents, by the Construction Contract or
otherwise against NAI.

        f) The undersigned agrees promptly to notify BNPLC of any material
default or claimed material default by NAI under the Construction Contract of
which the undersigned is aware, describing with particularity the default and
the action the undersigned believes is necessary to cure the same. The
undersigned will send any such notice to BNPLC prominently marked "URGENT -
NOTICE OF NAI'S DEFAULT UNDER CONSTRUCTION AGREEMENT WITH NETWORK APPLIANCE,
INC. - SUNNYVALE, CALIFORNIA" at the address specified for notice below (or at
such other addresses as BNPLC shall designate in notice sent to the
undersigned), by certified or registered mail, return receipt requested.
Following receipt of such notice, the undersigned will permit BNPLC or its
designee to cure any such default within the time period reasonably required for
such cure, but in no event less than thirty days. If it is necessary or helpful
to take possession of all or any portion of the Project to cure a default by NAI
under the Construction Contract, the time permitted by the undersigned for cure
by BNPLC will include the time necessary to terminate NAI's right to possession
of the Project and evict NAI, provided that BNPLC commences the steps required
to exercise such right within sixty days after it is entitled to do so under the
terms of the Improvements Lease Documents and applicable law. If the undersigned
incurs additional costs due to the extension of the aforementioned cure period,
the undersigned shall be entitled to an equitable adjustment to the price of the
Construction Contract for such additional costs.

        g) Any notice or communication required or permitted hereunder shall be
given in writing, sent by (a) personal delivery or (b) expedited delivery
service with proof of delivery or (c) United States mail, postage prepaid,
registered or certified mail or (d) telegram, telex or telecopy, addressed as
follows:

To the undersigned:
                                         --------------------------------

                                         --------------------------------

                                         --------------------------------

                                         Telecopy: (___) _____-______

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


A copy of any such notice or communication will also be sent to NAI by (a)
personal delivery or (b) expedited delivery service with proof of delivery or
(c) United States mail, postage prepaid, registered or certified mail or (d)
telegram, telex or telecopy, addressed as follows:


                               Exhibit C - Page 4
<PAGE>   30
BNP Leasing Corporation
__________, 200_
Page 5





                           Network Appliance, Inc.
                           Attn: Corporate Secretary
                           2770 San Thomas Expressway
                           Santa Clara, CA 95051
                           Telecopy: (__) ____-______

        h) The undersigned acknowledges that it has all requisite authority to
execute this letter. The undersigned further acknowledges that BNPLC has
requested this letter, and is relying on the truth and accuracy of the
representations made herein, in connection with BNPLC's decision to advance
funds for construction under the Improvements Lease Documents with NAI.

                                  Very truly yours,

                                  ----------------------------------------------

                                  By:
                                     -------------------------------------------
                                     Name:
                                          --------------------------------------
                                     Title:
                                           -------------------------------------

        NAI joins in the execution of this letter solely for the purpose of
evidencing its consent hereto, including its consent to the provisions that
would allow, but not require, BNPLC to assume the Construction Contract in the
event NAI is evicted from the Project.

                                  Network Appliance, Inc.


                                  By:
                                     -------------------------------------------
                                     Name:
                                          --------------------------------------
                                     Title:
                                           -------------------------------------



                               Exhibit C - Page 5

<PAGE>   31

                                    Exhibit D

                       ESTOPPEL FROM DESIGN PROFESSIONALS

                                _________, 200___


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

        Re:    Assignment of [Architect's Agreement/Engineering Contract]

Ladies and Gentlemen:

        The undersigned hereby represents to BNP LEASING CORPORATION, a Delaware
corporation ("BNPLC"), and covenants with BNPLC as follows:

        1. The undersigned has entered into that certain [Architect's
Agreement/Engineering Contract] (the "AGREEMENT") by and between the undersigned
and Network Appliance, Inc. ("NAI") dated _____________, the
[design/engineering] of the improvements to be constructed as part of NAI's
Sunnyvale campus leased by NAI (the "IMPROVEMENTS") on the land described in the
Improvements Lease Documents described below (the "LAND" and, together with the
Improvements and any other improvements now on or constructed in the future on
the Land, the "PROJECT").

        2. The undersigned has been advised that, by a Lease Agreement (Phase IV
- Improvements) and a Construction Management Agreement (Phase IV -
Improvements), both dated as of October 2, 2000 (collectively, the "IMPROVEMENTS
LEASE DOCUMENTS"), BNPLC is leasing the Project to NAI and has agreed, subject
to the terms and conditions of the Improvements Lease Documents, to provide a
construction allowance for the design and construction of the Improvements. The
undersigned has also been advised that the Improvements Lease Documents
expressly provide that third parties (including the undersigned) are not
intended as beneficiaries of the Improvements Lease Documents and, thus, will
have no standing to enforce any obligations of NAI or BNPLC under the
Improvements Lease Documents, including any such obligation that BNPLC may have
to provide the construction allowance. The undersigned understands that the
Improvements Lease Documents expressly provide that NAI is not authorized to
enter into any Agreement or other agreement with any third party in the name of
BNPLC or to otherwise bind BNPLC to any contract with a third party.

        3. A complete and correct copy of the Agreement is attached to this
letter. The Agreement is in full force and effect and has not been modified or
amended, except as provided in any written modifications or amendments which are
also attached to this letter.

        4. The undersigned has not sent or received any notice of default or any
other notice for the purpose of terminating the Agreement, nor does the
undersigned have knowledge of any

<PAGE>   32
BNP Leasing Corporation
__________, 200_
Page 2


existing circumstance or event which, but for the elapse of time or otherwise,
would constitute a default by the undersigned or by NAI under the Agreement.

The undersigned acknowledges and agrees that:


        a) BNPLC shall not be liable for, and the undersigned shall not assert,
any claims, demands or liabilities against BNPLC arising under or in any way
relating to the Agreement; provided, this paragraph will not (1) be construed as
a waiver of any statutory mechanic's or materialmen's liens against the
interests of NAI in and to the Land or the improvements thereon that may
otherwise exist or arise in favor of the undersigned, or (2) prohibit the
undersigned from asserting any claims or making demands against BNPLC under the
Agreement if BNPLC elects in writing, pursuant to paragraph b) below, to assume
the Agreement in the event NAI's right to possession of the Land is terminated,
it being understood that in the event of such an assumption BNPLC shall be
liable for the unpaid balance of the fees for services of the undersigned,
payable pursuant to (and subject to the terms and conditions set forth for the
benefit of the owner in) the Agreement, but in no event shall BNPLC otherwise be
personally liable for any acts or omissions on the part of NAI.

        b) Upon any termination of NAI's right to possession of the Project
under the Improvements Lease Documents, including any eviction of NAI resulting
from an Event of Default (as defined in the Improvements Lease Documents), BNPLC
shall be entitled (but not obligated), by notice to the undersigned and without
the necessity of the execution of any other document, to assume NAI's rights and
obligations under the Agreement, cure any defaults by NAI thereunder and enforce
the Agreement and all rights of NAI thereunder. Within ten days of receiving
notice from BNPLC that NAI's right to possession has been terminated, the
undersigned shall send to BNPLC a written estoppel letter stating: (i) that the
undersigned has not performed any act or executed any other instrument which
invalidates or modifies the Agreement in whole or in part (or, if so, the nature
of such modification); (ii) that the Agreement is valid and subsisting and in
full force and effect; (iii) that there are no defaults or events of default
then existing under the Agreement and no event has occurred which with the
passage of time or the giving of notice, or both, would constitute such a
default or event of default (or, if there is a default, the nature of such
default in detail); (iv) that the services contemplated by the Agreement are
proceeding in a satisfactory manner in all material respects (or if not, a
detailed description of all significant problems with the progress of services);
(v) a reasonably detailed report of the then critical dates projected by the
undersigned for services required to complete the Project; (vi) the total amount
received by the undersigned for services through the date of the letter; (vii)
the estimated total cost of completing such services as of the date of the
letter, together with a current payment schedule; and (viii) any other
information BNPLC may request to allow it to decide whether to assume the
Agreement. BNPLC shall have seven days from receipt of such written certificate
containing all such requested information to decide whether to assume the
Agreement. If BNPLC fails to assume the Agreement within such time, the
undersigned agrees that BNPLC shall not be liable (and the undersigned shall not
assert or bring any action against BNPLC or, except to enforce statutory lien
rights, if any, of the undersigned against the Land or improvements on the Land)
for any damages or other amounts resulting from the breach or termination of the
Agreement or under any other theory of liability of any kind or

                               Exhibit D - Page 2
<PAGE>   33
BNP Leasing Corporation
__________, 200_
Page 3


nature, but rather the undersigned shall look solely to NAI (and statutory lien
rights, if any, of the undersigned against the Land and any improvements
thereon) for the recovery of any such damages or other amounts.

        c) If BNPLC notifies the undersigned that BNPLC shall not assume the
Agreement pursuant to the preceding paragraph following the termination of NAI's
right to possession of the Project under the Improvements Lease Documents, the
undersigned shall immediately deliver and assign to BNPLC the following: (1)
copies of all plans and specifications for the Project or any component thereof
previously generated by or delivered to the undersigned, (2) any other contract
documents previously delivered to the undersigned (except that the undersigned
may keep an original set of the Agreement and other contract documents executed
by NAI), (3) any other material relating to the services provided under the
Agreement, and (4) to the extent available to the undersigned all papers and
documents relating to governmental permits, orders placed, bills and invoices,
lien releases and financial management under the Agreement. Notwithstanding the
undersigned's receipt of any notice from BNPLC that BNPLC declines to assume the
Agreement, the undersigned shall for a period not to exceed thirty days after
receipt of such notice take such steps, at BNPLC's expense, as are reasonably
necessary to preserve the utility and value of services completed and in
progress and to protect plans and specifications and other materials described
in the preceding sentence.

        d) If the Agreement is terminated by NAI before BNPLC is given the
opportunity to elect whether or not to assume the Agreement as provided herein,
BNPLC shall nonetheless have the right hereunder to assume the Agreement, as if
it had not been terminated, upon any termination of NAI's right to possession of
the Project under the Improvements Lease Documents; provided, however, that if
the services of the undersigned under the Agreement has been disrupted because
of NAI's termination of the Agreement, the undersigned shall be entitled to an
equitable adjustment to the price of the Agreement, following any assumption
thereof by BNPLC, for the additional costs incurred by the undersigned
attributable to the disruption; and, provided further, that if BNPLC does assume
the Agreement, BNPLC shall receive a credit against the price of the Agreement
for any consideration paid to the undersigned by NAI because of NAI's prior
termination of the Agreement (whether such consideration is designated a
termination fee, settlement payment or otherwise).

        e) No action taken by BNPLC or the undersigned with respect to the
Agreement shall prejudice any other rights or remedies of BNPLC or the
undersigned provided by law, by the Improvements Lease Documents, by the
Agreement or otherwise against NAI.

        f) The undersigned agrees promptly to notify BNPLC of any material
default or claimed material default by NAI under the Agreement of which the
undersigned is aware, describing with particularity the default and the action
the undersigned believes is necessary to cure the same. The undersigned will
send any such notice to BNPLC prominently marked "URGENT - NOTICE OF NAPS
DEFAULT UNDER DESIGN AGREEMENT WITH NETWORK APPLIANCE, INC. - SUNNYVALE,
CALIFORNIA" at the address specified for notice below (or at such other
addresses as BNPLC shall designate in notice sent to the undersigned), by
certified or registered mail, return receipt requested. Following receipt of
such

                               Exhibit D - Page 3
<PAGE>   34
BNP Leasing Corporation
__________, 200_
Page 4


notice, the undersigned will permit BNPLC or its designee to cure any such
default within the time period reasonably required for such cure, but in no
event less than thirty days.

        g) Any notice or communication required or permitted hereunder shall be
given in writing, sent by (a) personal delivery or (b) expedited delivery
service with proof of delivery or (c) United States mail, postage prepaid,
registered or certified mail or (d) telegram, telex or telecopy, addressed as
follows:

To the undersigned:
                                      --------------------------------

                                      --------------------------------

                                      --------------------------------
                                      Telecopy: (___) _____-______

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


A copy of any such notice or communication will also be sent to NAI by (a)
personal delivery or (b) expedited delivery service with proof of delivery or
(c) United States mail, postage prepaid, registered or certified mail or (d)
telegram, telex or telecopy, addressed as follows:

                                      Network Appliance, Inc.
                                      Attn: Corporate Secretary
                                      2770 San Thomas Expressway
                                      Santa Clara, CA 95051
                                      Telecopy:

        h) The undersigned acknowledges that it has all requisite authority to
execute this letter. The undersigned further acknowledges that BNPLC has
requested this letter, and is relying on the truth and accuracy of the
representations made herein, in connection with BNPLC's decision to advance
funds for design services under the Improvements Lease Documents with NAI.

                                       Very truly yours,

                                       -----------------------------------------

                                       By:
                                           -------------------------------------
                                          Name:
                                                --------------------------------
                                          Title:
                                                --------------------------------


                               Exhibit D - Page 4
<PAGE>   35
BNP Leasing Corporation
__________, 200_
Page 5


        NAI joins in the execution of this letter solely for the purpose of
evidencing its consent hereto, including its consent to the provisions that
would allow, but not require, BNPLC to assume the Agreement in the event NAI is
evicted from the Project.

                                       Network Appliance, Inc.


                                       By:
                                           -------------------------------------
                                          Name:
                                                --------------------------------
                                          Title:
                                                --------------------------------


                               Exhibit D - Page 5
<PAGE>   36

                                    Exhibit E

        NOTICE REQUESTING ADVANCE TO COVER PROPERTY INSURANCE DEDUCTIBLE


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

        Re: Construction Management Agreement (Phase IV - Improvements) dated as
of October 2, 2000 (the "CONSTRUCTION MANAGEMENT AGREEMENT"), between Network
Appliance, Inc. ("NAI") and BNP Leasing Corporation ("BNPLC ")

Gentlemen:

        Capitalized terms used in this letter are intended to have the meanings
assigned to them in the Construction Management Agreement or in the Common
Definitions and Provisions Agreement (Phase IV - Improvements) referenced in the
Construction Management Agreement. This letter shall constitute a request made
pursuant to subparagraph 2(A) of the Construction Management Agreement for a
final additional Construction Advance in the form of an addition to Escrowed
Proceeds equal to:

                               $________________,

on the Base Rent Commencement Date (All Buildings), which will occur on:

                               ___________,200___.

        To induce BNPLC to make such Construction Advance, NAI represents and
warrants as follows: (x) the dollar amount specified above equals the property
insurance deductible permitted under the insurance requirements set forth in the
Lease, (y) a Pre-commencement Casualty has resulted in damage to the
Improvements, for which the cost of repairs will - because of such deductible -
exceed the Escrowed Proceeds paid or payable in connection with such damage
under the property insurance maintained by NAI in accordance with the insurance
requirements in the Improvements Lease, and (z) NAI has not and will not
otherwise receive a Construction Advance to reimburse such excess costs prior to
the expiration of BNPLC's obligation to make further Construction Advances as
provided in subparagraph 2(C)(3) of the Construction Management Agreement.

NAI ACKNOWLEDGES THAT IF ANY REPRESENTATION ABOVE IS NOT TRUE, NAI'S OBLIGATION
TO INDEMNIFY AGAINST LOSSES SUSTAINED BY BNPLC OR ANY OTHER INTERESTED PARTY
BECAUSE OF ITS RELIANCE ON THIS LETTER SHALL CONSTITUTE ABSOLUTE NAI
CONSTRUCTION OBLIGATIONS UNDER THE CONSTRUCTION MANAGEMENT AGREEMENT AND THE
IMPROVEMENTS LEASE.



<PAGE>   37
BNP Leasing Corporation
__________, 200_
Page 2





        Executed this ____ day of ______________, 20___.

                                      Network Appliance, Inc.
                                         Name:
                                               ---------------------------------
                                         Title:
                                               ---------------------------------

[cc all Participants]


                               Exhibit E - Page 2
<PAGE>   38

                                    Exhibit F

                        CONSTRUCTION ADVANCE REQUEST FORM

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

        Re: Construction Management Agreement (Phase IV - Improvements) dated as
of October 2, 2000 (the "CONSTRUCTION MANAGEMENT AGREEMENT"), between Network
Appliance, Inc. ("NAI") and BNP Leasing Corporation ("BNPLC")

Gentlemen:

        Capitalized terms used in this letter are intended to have the meanings
assigned to them in the Construction Management Agreement or in the Common
Definitions and Provisions Agreement (Phase IV - Improvements) referenced in the
Construction Management Agreement. This letter shall constitute a Construction
Advance Request, requesting a Construction Advance of:

                               $________________,

on the Advance Date that will occur on:

                               ___________,200___.

Such total amount can be properly allocated between what we call "Building 6",
"Building 7" and "Building 8" as follows:


<TABLE>
<CAPTION>

<S>      <C>                                                   <C>
Building 6.................................................    $ __________

Building 7.................................................    $ __________

Building 8.................................................    $ __________

                          Total (as set forth above).........  $ __________
</TABLE>


        To induce BNPLC to make such Construction Advance, NAI represents and
warrants as follows:

I. CALCULATION OF LIMIT IMPOSED BY SUBPARAGRAPH 2(C)(2)(b) OF THE CONSTRUCTION
MANAGEMENT AGREEMENT:



<PAGE>   39
BNP Leasing Corporation
__________, 200_
Page 2

<TABLE>
<CAPTION>

<S>                                                                         <C>
(1) NAI has paid or incurred bona fide Reimbursable Construction-Period
Costs other than for Work (e.g., property taxes) of no less than .......    $ __________

(2) NAI has paid or incurred bona fide Reimbursable Construction-Period
Costs for Prior Work of no less than ...................................    $ __________

(3) NAI has received prior Construction Advances of no more than........    $ __________


                                       LIMIT (1 + 2 - 3) .................  $ __________
</TABLE>


II.     PROJECTED COST OVERRUNS:

NAI [CHECK ONE: DOES / DOES NOT ] believe that Projected Construction Overruns
are more likely than not. [If NAI does believe that Projected Cost Overruns are
more likely than not, and if NAI believes that the amount of such Projected
Construction Overruns can be reasonably estimated, NAI estimates the same at
$__________.]

        NOTE: The Construction Management Agreement defines Projected
        Construction Overruns as the excess, if any, of (1) the total of
        projected Reimbursable Construction-Period Costs yet to be incurred or
        for which NAI has yet to be reimbursed hereunder (including projected
        Reimbursable Construction-Period Costs for Future Work), over (2) the
        balance of the remaining Construction Allowance projected to be
        available to cover such costs.

III.    ABSENCE OF CERTAIN CMA SUSPENSION EVENTS:

        A. The Construction Project is progressing without significant
interruption in a good and workmanlike manner and substantially in accordance
with Applicable Laws, with Permitted Encumbrances, with Development Documents
and with the requirements of the Construction Management Agreement, except as
follows: (IF THERE ARE NO EXCEPTIONS, INSERT "NO EXCEPTIONS")


--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

        B. If NAI has received notice of any Defective Work, NAI has promptly
corrected or is diligently pursuing the correction of such Defective Work,
except as follows: (IF THERE ARE NO EXCEPTIONS, INSERT "NO EXCEPTIONS")


--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

--------------------------------------------------------------------------------

                               Exhibit F - Page 2
<PAGE>   40
BNP Leasing Corporation
__________, 200_
Page 3





NAI ACKNOWLEDGES THAT IF ANY REPRESENTATION ABOVE IS NOT TRUE, THEN NAI'S
OBLIGATION TO INDEMNIFY AGAINST LOSSES SUSTAINED BY BNPLC OR ANY OTHER
INTERESTED PARTY BECAUSE OF ITS RELIANCE ON THIS LETTER SHALL CONSTITUTE
ABSOLUTE NAI CONSTRUCTION OBLIGATIONS UNDER THE CONSTRUCTION MANAGEMENT
AGREEMENT AND THE IMPROVEMENTS LEASE.


        Executed this _____ day of ___________, 20 __.



                                   NETWORK APPLIANCE, INC.

                                   Name:
                                        --------------------------------------
                                   Title:
                                         -------------------------------------
[cc all Participants]

                               Exhibit F - Page 3

<PAGE>   41

                                    Exhibit G

                      NOTICE OF VOLUNTARY NAI CONSTRUCTION CONTRIBUTION

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

        Re: Construction Management Agreement (Phase IV - Improvements) dated as
of October 2, 2000 (the "CONSTRUCTION MANAGEMENT AGREEMENT"), between Network
Appliance, Inc. ("NAI") and BNP Leasing Corporation ("BNPLC")

Gentlemen:

        Capitalized terms used in this letter are intended to have the meanings
assigned to them in the Construction Management Agreement or in the Common
Definitions and Provisions Agreement (Phase IV - Improvements) referenced in the
Construction Management Agreement. This letter shall constitute notice, given as
described in subparagraph 3(C) of the Construction Management Agreement, that
NAI is paying with this letter, or unconditionally and irrevocably committing to
pay as described below, a Voluntary NAI Construction Contribution in the amount
of $ _______________.

        Such payment by NAI will be in addition to any Voluntary NAI
Construction Contributions required by other notices given by NAI as described
in subparagraph 3(C) of the Construction Management Agreement.

        Further, if the Voluntary NAI Construction Contribution required by this
letter is not being delivered to BNPLC by NAI contemporaneously with this
letter, then at such time as BNPLC's obligation to fund additional Construction
Advances is excused by any of the terms and conditions set forth in the
Construction Management Agreement, NAI shall be obligated to deliver such
Voluntary NAI Construction Contribution as required to eliminate (or reduce to
the maximum extent possible) Projected Cost Overruns, including any Projected
Cost Overruns caused by the accrual of Carrying Costs under and as described in
the Improvements Lease referenced in the Construction Management Agreement.

Executed this _____ day of ___________, 20 __.



                              NETWORK APPLIANCE, INC.

                              Name:
                                    ----------------------------------------

                              Title:
                                    ----------------------------------------

[cc all Participants]

<PAGE>   42

                                    Exhibit H

                            PREEMPTIVE NOTICE BY NAI

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

        Re: Construction Management Agreement (Phase IV - Improvements) dated as
of October 2, 2000 (the "CONSTRUCTION MANAGEMENT AGREEMENT"), between Network
Appliance, Inc. ("NAI") and BNP Leasing Corporation ("BNPLC")

Gentlemen:

        Capitalized terms used in this letter are intended to have the meanings
assigned to them in the Construction Management Agreement or in the Common
Definitions and Provisions Agreement (Phase IV - Improvements) referenced in the
Construction Management Agreement. This letter is intended to constitute a
Preemptive Notice, given as described in subparagraph 4(B) of the Construction
Management Agreement. As provided in clause (2) of the definition of Designated
Sale Date in the Common Definitions and Provisions Agreement (Phase IV -
Improvements), this letter shall constitute notice, given in accordance with
clause (2) of the definition of Common Definitions and Provisions Agreement
(Phase IV - Improvements), that NAI designates the following date as the
Designated Sale Date:

                                           ___________, ___.

        NAI acknowledges, however, that this notice will not be effective as a
Preemptive Notice if (1) such date is sooner than thirty days after the date of
this notice or later than ninety days after the date of any FOCB Notice
previously given by BNPLC under the Construction Management Agreement, or (2)
NAI has previously made any Issue 97-10 Election.

        NAI hereby unconditionally, unequivocally and irrevocably: (1) waives
any right to make any Issue 97-10 Election under any of the Operative Documents,
and (2) acknowledges and agrees that for purposes of calculating the
Supplemental Payment required by the Purchase Agreement, the Maximum Remarketing
Obligation will equal the Break Even Price under the Purchase Agreement.

Executed this _____ day of ___________, 20 __.



                                   Network Appliance, Inc.

                                   Name:
                                        ----------------------------------------
                                   Title:
                                         ---------------------------------------
[cc all Participants]



<PAGE>   43

                                    Exhibit I

                          NOTICE OF TERMINATION BY NAI

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

        Re: Construction Management Agreement (Phase IV - Improvements) dated as
of October 2, 2000 (the "CONSTRUCTION MANAGEMENT AGREEMENT"), between Network
Appliance, Inc. ("NAI") and BNP Leasing Corporation ("BNPLC")

Gentlemen:

        Capitalized terms used in this letter are intended to have the meanings
assigned to them in the Construction Management Agreement referenced above or in
the Common Definitions and Provisions Agreement (Phase IV - Improvements)
referenced in the Construction Management Agreement.

        NAI has determined that (1) the Construction Advances to be provided to
it under the Construction Management Agreement will not be sufficient to cover
all Construction-Period Reimbursable Costs, whether because the cost of the Work
exceeds budgeted expectations (resulting in Projected Cost Overruns) or because
NAI can no longer satisfy conditions to BNPLC's obligation to provide
Construction Advances in the Construction Management Agreement, or (2) the
Construction Project cannot be substantially completed before the Base Rent
Commencement Date (All Buildings) for reasons other than a breach by NAI of the
Construction Management Agreement. Accordingly, this letter shall constitute a
Notice of NAI's Election to Terminate the Construction Management Agreement,
given as provided in subparagraph 4(D) of the Construction Management Agreement.

        NAI irrevocably and unconditionally elects to terminate the Construction
Management Agreement effective as of the following date (which, as required by
subparagraph 4(D) thereof is a date not less than thirty days after the date
this notice is given):

                               ___________,200___.

        NAI ACKNOWLEDGES THAT THE ELECTION MADE BY NAI DESCRIBED ABOVE
CONSTITUTES AN ISSUE 97-1O ELECTION UNDER AND AS DEFINED IN THE OPERATIVE
DOCUMENTS.

Executed this _____ day of ___________, 20 __.


                         NETWORK APPLIANCE, INC.

                         Name:
                              ----------------------------------------
                         Title:
                              ----------------------------------------

[cc all Participants]