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                                                                    EXHIBIT 10.1

                                                                  EXECUTION COPY



                             JUNIPER NETWORKS, INC.

             ZERO COUPON CONVERTIBLE SENIOR NOTES DUE JUNE 15, 2008

                          REGISTRATION RIGHTS AGREEMENT

                                                          June 2, 2003

Goldman, Sachs & Co.
85 Broad Street
New York, New York 10004

Ladies and Gentlemen:

      Juniper Networks, Inc., a Delaware corporation (the "Company"), proposes
to issue and sell to the Purchaser (as defined herein) upon the terms set forth
in the Purchase Agreement (as defined herein) its Zero Coupon Convertible
Subordinated Notes due June 15, 2008 (the "Securities"). As an inducement to the
Purchaser to enter into the Purchase Agreement and in satisfaction of a
condition to the obligations of the Purchaser thereunder, the Company agrees
with the Purchaser for the benefit of Holders (as defined herein) from time to
time of the Registrable Securities (as defined herein) as follows:

      1.    Definitions.

      (a) Capitalized terms used herein without definition shall have the
respective meanings set forth in the Purchase Agreement. As used in this
Agreement, the following defined terms shall have the following meanings:

      "Act" or "Securities Act" means the United States Securities Act of 1933,
as amended.

      "Affiliate" of any specified person means any other person which, directly
or indirectly, is in control of, is controlled by, or is under common control
with such specified person. For purposes of this definition, control of a person
means the power, direct or indirect, to direct or cause the direction of the
management and policies of such person whether by contract or otherwise; and the
terms "controlling" and "controlled" have meanings correlative to the foregoing.

      "Closing Date" means the First Time of Delivery as defined in the Purchase
Agreement.

      "Commission" means the United States Securities and Exchange Commission,
or any other federal agency at the time administering the Exchange Act or the
Securities Act, whichever is the relevant statute for the particular purpose.
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      "Common Stock" means the Company's common stock, par value $0.00001 per
share.

      "DTC" means The Depository Trust Company.

      "Effective Date" has the meaning assigned thereto in Section 2(b)(i)
hereof.

      "Effective Failure" has the meaning assigned thereto in Section 7(b)
hereof.

      "Effectiveness Period" has the meaning assigned thereto in Section 2(b)(i)
hereof.

      "Effective Time" means the date on which the Commission declares the Shelf
Registration Statement effective or on which the Shelf Registration Statement
otherwise becomes effective.

      "Electing Holder" has the meaning assigned thereto in Section 3(a)(iii)
hereof.

      "Exchange Act" means the United States Securities Exchange Act of 1934, as
amended.

      "Holder" means, any person that is the record owner of Registrable
Securities (and includes any person that has a beneficial interest in any
Registrable Security in book-entry form).

      "Indenture" means the Indenture, dated as of June 2, 2003, between the
Company and Wells Fargo Bank Minnesota, N.A., as amended and supplemented from
time to time in accordance with its terms.

      "Liquidated Damages" has the meaning assigned thereto in Section 7(a)
hereof.

      "Managing Underwriters" means the investment banker or investment bankers
and manager or managers that shall administer an underwritten offering, if any,
conducted pursuant to Section 6 hereof.

      "NASD Rules" means the Rules of the National Association of Securities
Dealers, Inc., as amended from time to time.

      "Notice and Questionnaire" means a Notice of Registration Statement and
Selling Securityholder Questionnaire substantially in the form of Appendix A
hereto.

      The term "person" means an individual, partnership, corporation, trust or
unincorporated organization, or a government or agency or political subdivision
thereof.

      "Prospectus" means the prospectus (including, without limitation, any
preliminary prospectus, any final prospectus and any prospectus that discloses
information previously omitted from a prospectus filed as part of an effective
registration statement in reliance upon Rule 430A under the Act) included in the
Shelf Registration Statement, as amended or supplemented by any prospectus
supplement with respect to the terms of the offering of any portion of the
Registrable Securities covered by the Shelf Registration Statement and by all
other amendments and supplements to such prospectus, including all material
incorporated by
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reference in such prospectus and all documents filed after the date of such
prospectus by the Company under the Exchange Act and incorporated by reference
therein.

      "Purchase Agreement" means the purchase agreement, dated as of May 28,
2003, between the Purchaser and the Company relating to the Securities.

      "Purchaser" means Goldman, Sachs & Co.

      "Registrable Securities" means all or any portion of the Securities issued
from time to time under the Indenture in registered form and the shares of
Common Stock issuable upon conversion of such Securities; provided, however,
that a security ceases to be a Registrable Security when it is no longer a
Restricted Security.

      "Registration Default" has the meaning assigned thereto in Section 7(a)
hereof.

      "Restricted Security" means any Security or share of Common Stock issuable
upon conversion thereof except any such Security or share of Common Stock which
(i) has been effectively registered under the Securities Act and sold in a
manner contemplated by the Shelf Registration Statement, (ii) has been
transferred in compliance with Rule 144 under the Securities Act (or any
successor provision thereto) or is transferable pursuant to paragraph (k) of
such Rule 144 (or any successor provision thereto), or (iii) has otherwise been
transferred and a new Security or share of Common Stock not subject to transfer
restrictions under the Securities Act has been delivered by or on behalf of the
Company in accordance with Section 3.5 of the Indenture.

      "Rules and Regulations" means the published rules and regulations of the
Commission promulgated under the Securities Act or the Exchange Act, as in
effect at any relevant time.

      "Shelf Registration" means a registration effected pursuant to Section 2
hereof.

      "Shelf Registration Statement" means a "shelf" registration statement
filed under the Securities Act providing for the registration of, and the sale
on a continuous or delayed basis by the Holders of, all of the Registrable
Securities pursuant to Rule 415 under the Securities Act and/or any similar rule
that may be adopted by the Commission, filed by the Company pursuant to the
provisions of Section 2 of this Agreement, including the Prospectus contained
therein, any amendments and supplements to such registration statement,
including post-effective amendments, and all exhibits and all material
incorporated by reference in such registration statement.

      "Trust Indenture Act" means the Trust Indenture Act of 1939, or any
successor thereto, and the rules, regulations and forms promulgated thereunder,
as the same shall be amended from time to time.

      The term "underwriter" means any underwriter of Registrable Securities in
connection with an offering thereof under a Shelf Registration Statement.

      (b) Wherever there is a reference in this Agreement to a percentage of the
"principal amount" of Registrable Securities or to a percentage of Registrable
Securities, Common Stock
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shall be treated as representing the principal amount of Securities which was
surrendered for conversion or exchange in order to receive such number of shares
of Common Stock.

      2.    Shelf Registration.

      (a) The Company shall no later than 90 calendar days following the Closing
Date, file with the Commission a Shelf Registration Statement relating to the
offer and sale of the Registrable Securities by the Holders from time to time in
accordance with the methods of distribution elected by such Holders and set
forth in such Shelf Registration Statement and, thereafter, shall use its
reasonable efforts to cause such Shelf Registration Statement to be declared
effective under the Act no later than 180 calendar days following the Closing
Date; provided, however, that the Company may, upon written notice to all
Holders, postpone having the Shelf Registration Statement declared effective for
a reasonable period of time not to exceed 90 days if the Company possesses
material non-public information the disclosure of which would have a material
adverse effect on the Company and its subsidiaries taken as a whole; provided,
further, that no Holder shall be entitled to be named as a selling
securityholder in the Shelf Registration Statement or to use the Prospectus
forming a part thereof for resales of Registrable Securities unless such Holder
is an Electing Holder.

      (b) The Company shall use its reasonable efforts:

            (i) To keep the Shelf Registration Statement continuously effective
      in order to permit the Prospectus forming part thereof to be usable by
      Electing Holders, subject to Section 3(d)(v), until the earliest of (1)
      the sale of all Registrable Securities registered under the Shelf
      Registration Statement; (2) the expiration of the period referred to in
      Rule 144(k) of the Act with respect to all Registrable Securities held by
      Electing Holders that are not Affiliates of the Company; and (3) two years
      from the date (the "Effective Date") the Securities are issued (such
      period being referred to herein as the "Effectiveness Period");

            (ii) After the Effective Time of the Shelf Registration Statement,
      promptly upon the request of any Holder of Registrable Securities that is
      not then an Electing Holder, to take any action reasonably necessary to
      enable such Holder to use the Prospectus forming a part thereof for
      resales of Registrable Securities, including, without limitation, any
      action necessary to identify such Holder as a selling securityholder in
      the Shelf Registration Statement; provided, however, that nothing in this
      subparagraph shall relieve such Holder of the obligation to return a
      completed and signed Notice and Questionnaire to the Company in accordance
      with Section 3(a) hereof; and

            (iii) If at any time the Securities, pursuant to Article XII of the
      Indenture, are convertible into securities other than Common Stock, the
      Company shall, or shall cause any successor under the Indenture to, cause
      such securities to be included in the Shelf Registration Statement no
      later than the date on which the Securities may then be convertible into
      such securities.

      (c) The Company may suspend the use of the Prospectus for a period not to
exceed 30 days in any 90-day period or an aggregate of 90 days in any 365 day
period if the Board of
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Directors of the Company shall have determined in good faith that because of
valid business reasons (not including avoidance of the Company's obligations
hereunder), including the acquisition or divestiture of assets, pending
corporate developments and similar events, it is in the best interests of the
Company to suspend such use, and prior to suspending such use the Company
provides the Holders with written notice of such suspension, which notice need
not specify the nature of the event giving rise to such suspension.

      3. Registration Procedures. In connection with the Shelf Registration
Statement, the following provisions shall apply:

            (a) (i) Not less than 30 calendar days prior to the time the Company
      intends in good faith to have the Shelf Registration Statement declared
      effective, the Company shall mail the Notice and Questionnaire to the
      Holders of Registrable Securities. No Holder shall be entitled to be named
      as a selling securityholder in the Shelf Registration Statement as of the
      Effective Time, and no Holder shall be entitled to use the Prospectus
      forming a part thereof for resales of Registrable Securities at any time,
      unless such Holder has returned a completed and signed Notice and
      Questionnaire to the Company by the deadline for response set forth
      therein; provided, however, Holders of Registrable Securities shall have
      at least 28 calendar days from the date on which the Notice and
      Questionnaire is first mailed to such Holders to return a completed and
      signed Notice and Questionnaire to the Company.

            (ii) After the Effective Time of the Shelf Registration Statement,
      the Company shall, upon the request of any Holder of Registrable
      Securities that is not then an Electing Holder, promptly send a Notice and
      Questionnaire to such Holder. The Company shall not be required to take
      any action to name such Holder as a selling securityholder in the Shelf
      Registration Statement or to enable such Holder to use the Prospectus
      forming a part thereof for resales of Registrable Securities until such
      Holder has returned a completed and signed Notice and Questionnaire to the
      Company.

            (iii) The term "Electing Holder" shall mean any Holder of
      Registrable Securities that has returned a completed and signed Notice and
      Questionnaire to the Company in accordance with Section 3(a)(i) or
      3(a)(ii) hereof.

      (b) The Company shall (i) promptly furnish to each Electing Holder who so
requests in writing, prior to the Effective Time, a copy of the Shelf
Registration Statement initially filed with the Commission, and shall furnish to
such Holders who so request in writing, prior to the filing thereof with the
Commission, copies of each amendment thereto and each amendment or supplement,
if any, to the Prospectus included therein, and shall use its reasonable efforts
to reflect in each such document, at the Effective Time or when so filed with
the Commission, as the case may be, such comments as such Holders and their
respective counsel reasonably may propose as being legally necessary with
respect to the due diligence obligation of such Holders, and (ii) after the
Effective Time promptly incorporate in a prospectus supplement or post-effective
amendment such information as is required by the applicable Rules and
Regulations as such Electing Holder specifies in its Notice and Questionnaire
should be included therein relating to the terms of the sale of Registrable
Securities of such Electing Holder.
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      (c) The Company shall promptly take such action as may be necessary so
that (i) each of the Shelf Registration Statement and any amendment thereto and
the Prospectus forming part thereof and any amendment or supplement thereto (and
each report or other document incorporated therein by reference in each case)
complies in all material respects with the Securities Act and the Exchange Act
and the respective rules and regulations thereunder, (ii) each of the Shelf
Registration Statement and any amendment thereto does not, when it becomes
effective, contain an untrue statement of a material fact or omit to state a
material fact required to be stated therein or necessary to make the statements
therein not misleading and (iii) each of the Prospectus forming part of the
Shelf Registration Statement, and any amendment or supplement to such
Prospectus, does not during the Effectiveness Period include an untrue statement
of a material fact or omit to state a material fact necessary in order to make
the statements therein, in the light of the circumstances under which they were
made, not misleading.

      (d) The Company shall promptly advise each Electing Holder, and shall
confirm such advice in writing if so requested by any such Holder:

            (i) when a Shelf Registration Statement has been filed with the
      Commission and when a Shelf Registration Statement or any post-effective
      amendment thereto has become effective, in each case making a public
      announcement thereof by release made to Reuters Economic Services and
      Bloomberg Business News;

            (ii) of any request by the Commission after the Effective Time for
      amendments or supplements to the Shelf Registration Statement or the
      Prospectus included therein or for additional information.

            (iii) of the issuance by the Commission of any stop order suspending
      the effectiveness of the Shelf Registration Statement or the initiation of
      any proceedings for such purpose;

            (iv) of the receipt by the Company of any notification with respect
      to the suspension of the qualification of the securities included in the
      Shelf Registration Statement for sale in any jurisdiction or the
      initiation of any proceeding for such purpose; and

            (v) of the happening of any event or the existence of any state of
      facts that requires the making of any changes in the Shelf Registration
      Statement or the Prospectus included therein so that, as of such date,
      such Shelf Registration Statement and Prospectus do not contain an untrue
      statement of a material fact and do not omit to state a material fact
      required to be stated therein or necessary to make the statements therein
      (in the case of the Prospectus, in light of the circumstances under which
      they were made) not misleading (which advice shall be accompanied by an
      instruction to such Holders to suspend the use of the Prospectus until the
      requisite changes have been made).
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      (e) The Company shall use its reasonable efforts to prevent the issuance,
and if issued to obtain the withdrawal, of any order suspending the
effectiveness of the Shelf Registration Statement at the earliest possible time.

      (f) The Company shall, during the Effectiveness Period, deliver to each
Electing Holder, without charge, as many copies of the Prospectus (including
each preliminary Prospectus) included in the Shelf Registration Statement and
any amendment or supplement thereto as such Electing Holder may reasonably
request in writing; and the Company consents (except during a suspension period
pursuant to Section 2(c) hereof or during the continuance of any event described
in Section 3(d)(v) above) to the use of the Prospectus and any amendment or
supplement thereto by each of the Electing Holders in connection with the
offering and sale of the Registrable Securities covered by the Prospectus and
any amendment or supplement thereto during the Effectiveness Period.

      (g) Prior to any offering of Registrable Securities pursuant to the Shelf
Registration Statement, the Company shall (i) register or qualify or cooperate
with the Electing Holders and their respective counsel in connection with the
registration or qualification of such Registrable Securities for offer and sale
under the securities or "blue sky" laws of such jurisdictions within the United
States as any Electing Holder may reasonably request, (ii) keep such
registrations or qualifications in effect and comply with such laws so as to
permit the continuance of offers and sales in such jurisdictions for so long as
may be necessary to enable any Electing Holder or underwriter, if any, to
complete its distribution of Registrable Securities pursuant to the Shelf
Registration Statement, and (iii) take any and all other actions necessary or
advisable to enable the disposition in such jurisdictions of such Registrable
Securities; provided, however, that in no event shall the Company be obligated
to (A) qualify as a foreign corporation or as a dealer in securities in any
jurisdiction where it would not otherwise be required to so qualify but for this
Section 3(g) or (B) file any general consent to service of process in any
jurisdiction where it is not as of the date hereof so subject.

      (h) Upon the occurrence of any fact or event contemplated by paragraph
3(d)(v) above, the Company shall promptly prepare a post-effective amendment to
any Shelf Registration Statement or an amendment or supplement to the related
Prospectus or file any other required document so that, as thereafter delivered
to Purchaser of the Registrable Securities included therein, the Prospectus will
not include an untrue statement of a material fact or omit to state any material
fact necessary to make the statements therein, in the light of the circumstances
under which they were made, not misleading. If the Company notifies the Electing
Holders of the occurrence of any event contemplated by paragraph 3(d)(v) above,
the Electing Holder shall suspend the use of the Prospectus until the requisite
changes to the Prospectus have been made.

      (i) The Company shall use its reasonable efforts to comply with all
applicable Rules and Regulations, and to make generally available to its
securityholders as soon as practicable, but in any event not later than eighteen
months after (i) the effective date (as defined in Rule 158(c) under the
Securities Act) of the Shelf Registration Statement, (ii) the effective date of
each post-effective amendment to the Shelf Registration Statement, and (iii) the
date of each filing by the Company with the Commission of an Annual Report on
Form 10-K that is incorporated by reference in the Shelf Registration Statement,
an earnings statement of the
<PAGE>
Company and its subsidiaries complying with Section 11(a) of the Securities Act
and the rules and regulations of the Commission thereunder (including, at the
option of the Company, Rule 158).

      (j) Not later than the Effective Time of the Shelf Registration Statement,
the Company shall cause the Indenture to be qualified under the Trust Indenture
Act; in connection with such qualification, the Company shall cooperate with the
Trustee under the Indenture and the Holders (as defined in the Indenture) to
effect such changes to the Indenture as may be required for such Indenture to be
so qualified in accordance with the terms of the Trust Indenture Act; and the
Company shall execute, and shall use all reasonable efforts to cause the Trustee
to execute, all documents that may be required to effect such changes and all
other forms and documents required to be filed with the Commission to enable
such Indenture to be so qualified in a timely manner. In the event that any such
amendment or modification referred to in this Section 3(j) involves the
appointment of a new trustee under the Indenture, the Company shall appoint a
new trustee thereunder pursuant to the applicable provisions of the Indenture.

      (k) The Company shall (A) make reasonably available for inspection by the
Electing Holders, any underwriter participating in any disposition pursuant to
the Shelf Registration Statement, and any attorney, accountant or other agent
retained by such Electing Holders or any such underwriter all relevant financial
and other records, pertinent corporate documents and properties of the Company
and its subsidiaries, and (B) cause the Company's officers, directors and
employees to supply all information reasonably requested by such Electing
Holders or any such underwriter, attorney, accountant or agent in connection
with the Shelf Registration Statement, in each case, as is customary for similar
due diligence examinations; provided, however, that all records, information and
documents that are designated in writing by the Company, in good faith, as
confidential shall be kept confidential by such Electing Holders and any such
underwriter, attorney, accountant or agent, unless such disclosure is made in
connection with a court proceeding or required by law, or such records,
information or documents become available to the public generally or through a
third party without an accompanying obligation of confidentiality and provided
further that, if the foregoing inspection and information gathering would
otherwise disrupt the Company's conduct of its business, such inspection and
information gathering shall, to the greatest extent possible, be coordinated on
behalf of the Electing Holders and the other parties entitled thereto by one
counsel designated by and on behalf of the Electing Holders and other parties;
in the event that any Holder, attorney, accountant or agent is required to
disclose confidential information of the Company by law or in a court
proceeding, such Holder, attorney, accountant or agent will provide the Company
with notice of such disclosure requirement and copies of the information to be
disclosed, if possible, and will cooperate with the Company, to the extent
reasonably practicable, to limit such disclosure;

      (l) The Company will use its reasonable efforts to cause the Common Stock
issuable upon conversion of the Securities to be listed for quotation on the
Nasdaq National Market or other stock exchange or trading system on which the
Common Stock primarily trades on or prior to the Effective Time of the Shelf
Registration Statement hereunder.
<PAGE>
      (m) The Company shall use its reasonable efforts to take all other steps
necessary to effect the registration, offering and sale of the Registrable
Securities covered by the Shelf Registration Statement contemplated hereby.

      (n) Unless any Registrable Securities shall be in book-entry only form,
the Company shall cooperate with the Electing Holders to facilitate the timely
preparation and delivery of certificates representing Registrable Securities to
be sold pursuant to the Shelf Registration Statement, which certificates, if so
required by any securities exchange upon which any Registrable Securities are
listed, shall be penned, lithographed or engraved, or produced by any
combination of such methods, on steel engraved borders, and which certificates
shall be free of any restrictive legends and in such permitted denominations and
registered in such names as Electing Holders may request in connection with the
sale of Registrable Securities pursuant to the Shelf Registration Statement.

      (o) Not later than the Effective Time of the Shelf Registration Statement,
the Company shall provide a CUSIP number for the Registrable Securities that are
debt securities.

      (p) In the event of an underwritten offering conducted pursuant to Section
6 hereof, the Company shall, if requested, promptly include or incorporate in a
Prospectus supplement or post-effective amendment to the Shelf Registration
Statement such information as the Managing Underwriters reasonably agree should
be included therein and to which the Company does not reasonably object and
shall make all required filings of such Prospectus supplement or post-effective
amendment as soon as practicable after it is notified of the matters to be
included or incorporated in such Prospectus supplement or post-effective
amendment.

      (q) The Company shall enter into such customary agreements (including an
underwriting agreement in customary form in the event of an underwritten
offering conducted pursuant to Section 6 hereof) and take all other appropriate
action in order to expedite and facilitate the registration and disposition of
the Registrable Securities, and in connection therewith, if an underwriting
agreement is entered into, cause the same to contain indemnification provisions
and procedures substantially identical to those set forth in Section 5 hereof
with respect to all parties to be indemnified pursuant to Section 5 hereof.

      (r) The Company shall:

            (i) in connection with any underwritten offering conducted pursuant
      to Section 6 hereof, make such representations and warranties to the
      Electing Holders participating in such underwritten offering and to the
      Managing Underwriters, in form, substance and scope as are customarily
      made by the Company to underwriters in primary underwritten offerings of
      equity and convertible debt securities and covering matters including, but
      not limited to, those set forth in the Purchase Agreement;

            (ii) in connection with any underwritten offering conducted pursuant
      to Section 6 hereof, obtain opinions of counsel to the Company (which
      counsel and opinions (in form, scope and substance) shall be reasonably
      satisfactory to the Managing Underwriters) addressed to each Electing
      Holder participating in such underwritten offering and the underwriters,
      covering such matters as are customarily covered in opinions requested in
      primary underwritten offerings of equity and convertible
<PAGE>
      debt securities and such other matters as may be reasonably requested by
      such Electing Holders and underwriters (it being agreed that the matters
      to be covered by such opinions shall include, without limitation, as of
      the date of the opinion and as of the Effective Time of the Shelf
      Registration Statement or most recent post-effective amendment thereto, as
      the case may be, the absence from the Shelf Registration Statement and the
      Prospectus, including the documents incorporated by reference therein, of
      an untrue statement of a material fact or the omission of a material fact
      required to be stated therein or necessary to make the statements therein
      not misleading;

            (iii) in connection with any underwritten offering conducted
      pursuant to Section 6 hereof, obtain "cold comfort" letters and updates
      thereof from the independent public accountants of the Company (and, if
      necessary, from the independent public accountants of any subsidiary of
      the Company or of any business acquired by the Company for which financial
      statements and financial data are, or are required to be, included in the
      Shelf Registration Statement), addressed to each Electing Holder
      participating in such underwritten offering (if such Electing Holder has
      provided such letter, representations or documentation, if any, required
      for such cold comfort letter to be so addressed) and the underwriters, in
      customary form and covering matters of the type customarily covered in
      "cold comfort" letters in connection with primary underwritten offerings;

            (iv) in connection with any underwritten offering conducted pursuant
      to Section 6 hereof, deliver such documents and certificates as may be
      reasonably requested by any Electing Holders participating in such
      underwritten offering and the Managing Underwriters, if any, including,
      without limitation, certificates to evidence compliance with Section 3(h)
      hereof and with any conditions contained in the underwriting agreement or
      other agreements entered into by the Company.

            (s) In the event that any broker-dealer registered under the
      Exchange Act shall be an "affiliate" (as defined in Rule 2720(b)(1) of the
      NASD Rules (or any successor provision thereto)) of the Company or has a
      "conflict of interest" (as defined in Rule 2720(b)(7) of the NASD Rules
      (or any successor provision thereto)) and such broker-dealer shall
      underwrite, participate as a member of an underwriting syndicate or
      selling group or assist in the distribution of any Registrable Securities
      covered by the Shelf Registration Statement, whether as a Holder of such
      Registrable Securities or as an underwriter, a placement or sales agent or
      a broker or dealer in respect thereof, or otherwise, the Company shall
      assist such broker-dealer in complying with the requirements of the NASD
      Rules, including, without limitation, by (A) engaging a "qualified
      independent underwriter" (as defined in Rule 2720(b)(15) of the NASD Rules
      (or any successor provision thereto)) to participate in the preparation of
      the registration statement relating to such Registrable Securities, to
      exercise usual standards of due diligence in respect thereto and to
      recommend the public offering price of such Registrable Securities, (B)
      indemnifying such qualified independent underwriter to the extent of the
      indemnification of underwriters provided in Section 5 hereof, and (C)
      providing such information to such broker-dealer as may be required in
      order for such broker-dealer to comply with the requirements of the NASD
      Rules.

<PAGE>
      4. Registration Expenses. Except as otherwise provided in Section 3, the
Company shall bear all fees and expenses incurred in connection with the
performance of its obligations under Sections 2, 3 and 6 hereof and shall bear
or reimburse the Electing Holders for the reasonable fees and disbursements of a
single counsel, if any, selected by Electing Holders who own at least a majority
in aggregate principal amount of the Registrable Securities covered by the Shelf
Registration Statement to act as counsel therefore in connection therewith. Each
Electing Holder shall pay all underwriting discounts and commissions and
transfer taxes and other fees and expenses incurred by such Holder (other than
those expenses specifically provided for above in this Section 4), if any,
relating to the sale or disposition of such Electing Holder's Registrable
Securities pursuant to the Shelf Registration Statement.

      5. Indemnification and Contribution.

      (a) Indemnification by the Company. Upon the registration of the
Registrable Securities pursuant to Section 2 hereof, the Company shall indemnify
and hold harmless each Electing Holder and each underwriter, selling agent or
other securities professional, if any, which facilitates the disposition of
Registrable Securities, and each of their respective officers and directors and
each person who controls such Electing Holder, underwriter, selling agent or
other securities professional within the meaning of Section 15 of the Securities
Act or Section 20 of the Exchange Act (each such person being sometimes referred
to as an "Indemnified Person") against any losses, claims, damages or
liabilities, joint or several, to which such Indemnified Person may become
subject under the Securities Act or otherwise, insofar as such losses, claims,
damages or liabilities (or actions in respect thereof) arise out of or are based
upon an untrue statement or alleged untrue statement of a material fact
contained in any Shelf Registration Statement under which such Registrable
Securities are to be registered under the Securities Act, or any Prospectus
contained therein or furnished by the Company to any Indemnified Person, or any
amendment or supplement thereto, or arise out of or are based upon the omission
or alleged omission to state therein a material fact required to be stated
therein or necessary to make the statements therein not misleading (in the case
of the Prospectus, in light of the circumstances under which they were made),
and the Company hereby agrees to reimburse such Indemnified Person for any legal
or other expenses reasonably incurred by them in connection with investigating
or defending any such action or claim as such expenses are incurred; provided,
however, that the Company shall not be liable to any such Indemnified Person in
any such case to the extent that any such loss, claim, damage or liability
arises out of or is based upon an untrue statement or alleged untrue statement
or omission or alleged omission made in such Shelf Registration Statement or
Prospectus, or amendment or supplement, in reliance upon and in conformity with
written information furnished to the Company by such Indemnified Person
expressly for use therein.

      (b) Indemnification by the Electing Holders and Any Agents and
Underwriters. Each Electing Holder agrees, as a consequence of the inclusion of
any of such Electing Holder's Registrable Securities in such Shelf Registration
Statement, and each underwriter, selling agent or other securities professional,
if any, which facilitates the disposition of Registrable Securities shall agree,
as a consequence of facilitating such disposition of Registrable Securities,
severally and not jointly, to (i) indemnify and hold harmless the Company, its
directors, officers who sign any Shelf Registration Statement and each person,
if any, who controls the Company within the meaning of either Section 15 of the
Securities Act or Section 20 of the Exchange Act,
<PAGE>
against any losses, claims, damages or liabilities to which the Company or such
other persons may become subject, under the Securities Act or otherwise, insofar
as such losses, claims, damages or liabilities (or actions in respect thereof)
arise out of or are based upon an untrue statement or alleged untrue statement
of a material fact contained in such Shelf Registration Statement or Prospectus,
or any amendment or supplement, or arise out of or are based upon the omission
or alleged omission to state therein a material fact required to be stated
therein or necessary to make the statements therein not misleading (in the case
of the Prospectus, in light of the circumstances under which they were made), in
each case to the extent, but only to the extent, that such untrue statement or
alleged untrue statement or omission or alleged omission was made in reliance
upon and in conformity with written information furnished to the Company by such
Electing Holder, underwriter, selling agent or other securities professional
expressly for use therein, and (ii) reimburse the Company for any legal or other
expenses reasonably incurred by the Company in connection with investigating or
defending any such action or claim as such expenses are incurred.

      (c) Notices of Claims, Etc. Promptly after receipt by an indemnified party
under subsection (a) or (b) above of notice of the commencement of any action,
such indemnified party shall, if a claim in respect thereof is to be made
against an indemnifying party under this Section 5, notify such indemnifying
party in writing of the commencement thereof; but the omission so to notify the
indemnifying party shall not relieve it from any liability which it may have to
any indemnified party otherwise than under the indemnification provisions of or
contemplated by subsection (a) or (b) above. In case any such action shall be
brought against any indemnified party and it shall notify an indemnifying party
of the commencement thereof, such indemnifying party shall be entitled to
participate therein and, to the extent that it shall wish, jointly with any
other indemnifying party similarly notified, to assume the defense thereof, with
counsel satisfactory to such indemnified party (who shall not, except with the
consent of the indemnified party, be counsel to the indemnifying party), and,
after notice from the indemnifying party to such indemnified party of its
election so to assume the defense thereof, such indemnifying party shall not be
liable to such indemnified party under this Section 5 for any legal expenses of
other counsel or any other expenses, in each case subsequently incurred by such
indemnified party, in connection with the defense thereof other than reasonable
costs of investigation. No indemnifying party shall, without the written consent
of the indemnified party, effect the settlement or compromise of, or consent to
the entry of any judgment with respect to, any pending or threatened action or
claim in respect of which indemnification or contribution may be sought
hereunder (whether or not the indemnified party is an actual or potential party
to such action or claim) unless such settlement, compromise or judgment (i)
includes an unconditional release of the indemnified party from all liability
arising out of such action or claim and (ii) does not include a statement as to,
or an admission of, fault, culpability or a failure to act, by or on behalf of
any indemnified party.

      (d) Contribution. If the indemnification provided for in this Section 5 is
unavailable to or insufficient to hold harmless an indemnified party under
subsection (a) or (b) above in respect of any losses, claims, damages or
liabilities (or actions in respect thereof) referred to therein, then each
indemnifying party shall contribute to the amount paid or payable by such
indemnified party as a result of such losses, claims, damages or liabilities (or
actions in respect thereof) in such proportion as is appropriate to reflect the
relative fault of the indemnifying party and the indemnified party in connection
with the statements or omissions which resulted in such
<PAGE>
losses, claims, damages or liabilities (or actions in respect thereof), as well
as any other relevant equitable considerations. The relative fault of such
indemnifying party and indemnified party shall be determined by reference to,
among other things, whether the untrue or alleged untrue statement of a material
fact or omission or alleged omission to state a material fact relates to
information supplied by such indemnifying party or by such indemnified party,
and the parties' relative intent, knowledge, access to information and
opportunity to correct or prevent such statement or omission. The parties hereto
agree that it would not be just and equitable if contribution pursuant to this
Section 5(d) were determined by pro rata allocation (even if the Electing
Holders or any underwriters, selling agents or other securities professionals or
all of them were treated as one entity for such purpose) or by any other method
of allocation which does not take account of the equitable considerations
referred to in this Section 5(d). The amount paid or payable by an indemnified
party as a result of the losses, claims, damages or liabilities (or actions in
respect thereof) referred to above shall be deemed to include any legal or other
fees or expenses reasonably incurred by such indemnified party in connection
with investigating or defending any such action or claim. No person guilty of
fraudulent misrepresentation (within the meaning of Section 11(f) of the
Securities Act) shall be entitled to contribution from any person who was not
guilty of such fraudulent misrepresentation. The obligations of the Electing
Holders and any underwriters, selling agents or other securities professionals
in this Section 5(d) to contribute shall be several in proportion to the
percentage of principal amount of Registrable Securities registered or
underwritten, as the case may be, by them and not joint.

      (e) Notwithstanding any other provision of this Section 5, in no event
will any (i) Electing Holder be required to undertake liability to any person
under this Section 5 for any amounts in excess of the dollar amount of the
proceeds to be received by such Holder from the sale of such Holder's
Registrable Securities (after deducting any fees, discounts and commissions
applicable thereto) pursuant to any Shelf Registration Statement under which
such Registrable Securities are to be registered under the Securities Act and
(ii) underwriter, selling agent or other securities professional be required to
undertake liability to any person hereunder for any amounts in excess of the
discount, commission or other compensation payable to such underwriter, selling
agent or other securities professional with respect to the Registrable
Securities underwritten by it and distributed to the public.

      (f) The obligations of the Company under this Section 5 shall be in
addition to any liability which the Company may otherwise have to any
Indemnified Person and the obligations of any Indemnified Person under this
Section 5 shall be in addition to any liability which such Indemnified Person
may otherwise have to the Company. The remedies provided in this Section 5 are
not exclusive and shall not limit any rights or remedies which may otherwise be
available to an indemnified party at law or in equity.

      6. Underwritten Offering. Any Holder of Registrable Securities who desires
to do so may sell Registrable Securities (in whole or in part) in an
underwritten offering; provided that (i) the Electing Holders of at least
33-1/3% in aggregate principal amount of the Registrable Securities then covered
by the Shelf Registration Statement shall request such an offering and (ii) at
least such aggregate principal amount of such Registrable Securities shall be
included in such offering; and provided further that the Company shall not be
obligated to cooperate with more than one underwritten offering during the
Effectiveness Period. Upon receipt of such a
<PAGE>
request, the Company shall provide all Holders of Registrable Securities written
notice of the request, which notice shall inform such Holders that they have the
opportunity to participate in the offering. In any such underwritten offering,
the investment banker or bankers and manager or managers that will administer
the offering will be selected by, and the underwriting arrangements with respect
thereto (including the size of the offering) will be approved by, the holders of
a majority of the Registrable Securities to be included in such offering;
provided, however, that such investment bankers and managers and underwriting
arrangements must be reasonably satisfactory to the Company. No Holder may
participate in any underwritten offering contemplated hereby unless (a) such
Holder agrees to sell such Holder's Registrable Securities to be included in the
underwritten offering in accordance with any approved underwriting arrangements,
(b) such Holder completes and executes all reasonable questionnaires, powers of
attorney, indemnities, underwriting agreements, lock-up letters and other
documents required under the terms of such approved underwriting arrangements,
and (c) if such Holder is not then an Electing Holder, such Holder returns a
completed and signed Notice and Questionnaire to the Company in accordance with
Section 3(a)(ii) hereof within a reasonable amount of time before such
underwritten offering. The Holders participating in any underwritten offering
shall be responsible for any underwriting discounts and commissions and fees
and, subject to Section 4 hereof, expenses of their own counsel. The Company
shall pay all expenses customarily borne by issuers in an underwritten offering,
including but not limited to filing fees, the fees and disbursements of its
counsel and independent public accountants and any printing expenses incurred in
connection with such underwritten offering. Notwithstanding the foregoing or the
provisions of Section 3(p) hereof, upon receipt of a request from the Managing
Underwriter or a representative of holders of a majority of the Registrable
Securities to be included in an underwritten offering to prepare and file an
amendment or supplement to the Shelf Registration Statement and Prospectus in
connection with an underwritten offering, the Company may delay the filing of
any such amendment or supplement for up to 90 days if the Board of Directors of
the Company shall have determined in good faith that the Company has a bona fide
business reason for such delay.

      7. Liquidated Damages.

      (a) If (i) on or prior to the 90th day following the Closing Date, a Shelf
Registration Statement has not been filed with the Commission or (ii) on or
prior to the 180th day following the Closing Date, such Shelf Registration
Statement is not declared effective by the Commission (each, a "Registration
Default"), the Company shall be required to pay liquidated damages ("Liquidated
Damages"), from and including the day following such Registration Default until
such Shelf Registration Statement is either so filed or so filed and
subsequently declared effective, as applicable. Such Liquidated Damages shall be
paid semi-annually in arrears, with the first semi-annual payment due on the
first June 15 or December 15 following the date of such Registration Default, at
a rate per annum equal to one-quarter of one percent (0.25%) of the principal
amount of Registrable Securities, to and including the 90th day following such
Registration Default and one-half of one percent (0.5%) thereof from and after
the 91st day following such Registration Default.

      (b) In the event that the Shelf Registration Statement ceases to be
effective (or the Holders of Registrable Securities are otherwise prevented or
restricted by the Company from effecting sales pursuant thereto) (an "Effective
Failure") for more than 30 days, whether or not consecutive, in any 90-day
period, or more than 90 days, whether or not
<PAGE>
consecutive, during any 365 day period, then the Company shall pay Liquidated
Damages at a rate per annum equal to one-half of one percent (0.5%) from the
first day that the 30 day or 90 day period is exceeded, whichever occurs first,
until the earlier of (i) the time the Shelf Registration Statement again becomes
effective or the Holders of Registrable Securities are again able to make sales
under the Shelf Registration Statement or (2) the time the Effectiveness Period
expires. For the purpose of determining an Effective Failure, days on which the
Company has been obligated to pay Liquidated Damages in accordance with the
foregoing in respect of a prior Effective Failure within the applicable 90-day
or 12-month period, as the case may be, shall not be included.

      (c) Any amounts to be paid as Liquidated Damages pursuant to paragraphs
(a) or (b) of this Section 7 shall be paid semi-annually in arrears, with the
first semi-annual payment due on the first June 15 or December 15, as
applicable, following the date of such Registration Default. Such Liquidated
Damages will accrue (1) in respect of the Securities at the rates set forth in
paragraphs (a) or (b) of this Section 7, as applicable, on the principal amount
of the Securities and (2) in respect of the Common Stock issued upon conversion
of the Securities, at the rates set forth in paragraphs (a) or (b) of this
Section 7, as applicable, applied to the Conversion Price (as defined in the
Indenture) at that time.

      (d) Except as provided in Section 8(b) hereof, and subject to paragraph
(e) below, the Liquidated Damages as set forth in this Section 7 shall be the
exclusive monetary remedy available to the Electing Holders of Registrable
Securities for such Registration Default or Effective Failure.

      (e) Only Electing Holders are entitled to receive Liquidated Damages.

      8. Miscellaneous.

      (a) Other Registration Rights. The Company may not grant registration
rights that would be inconsistent with the registration rights granted
hereunder.

      (b) Specific Performance. The parties hereto acknowledge that there would
be no adequate remedy at law if the Company fails to perform any of its
obligations hereunder and that the Purchaser and the Holders from time to time
may be irreparably harmed by any such failure, and accordingly agree that the
Purchaser and such Holders, in addition to any other remedy to which they may be
entitled at law or in equity and without limiting the remedies available to the
Electing Holders under Section 7 hereof, shall be entitled to compel specific
performance of the obligations of the Company under this Registration Rights
Agreement in accordance with the terms and conditions of this Registration
Rights Agreement, in any court of the United States or any State thereof having
jurisdiction.

      (c) Entire Agreement; Amendments and Waivers. This Agreement and the other
writings referred to herein (including the Indenture and the form of Securities)
or delivered pursuant hereto which form a part hereof contain the entire
understanding of the parties with respect to its subject matter. This Agreement,
including this Section 8(c), may be amended, and waivers or consents to
departures from the provisions hereof may be given, only by a written instrument
duly executed by the Company and the holders of a majority in aggregate
<PAGE>
principal amount of Registrable Securities then outstanding. Each Holder of
Registrable Securities outstanding at the time of any such amendment, waiver or
consent or thereafter shall be bound by any amendment, waiver or consent
effected pursuant to this Section 8(c), whether or not any notice, writing or
marking indicating such amendment, waiver or consent appears on the Registrable
Securities or is delivered to such Holder.

      (d) Notices. All notices and other communications provided for or
permitted hereunder shall be given as provided in the Indenture.

      (e) Parties in Interest. The parties to this Agreement intend that all
Holders of Registrable Securities shall be entitled to receive the benefits of
this Agreement and that any Electing Holder shall be bound by the terms and
provisions of this Agreement by reason of such election with respect to the
Registrable Securities which are included in a Shelf Registration Statement. All
the terms and provisions of this Agreement shall be binding upon, shall inure to
the benefit of and shall be enforceable by the respective successors and assigns
of the parties hereto and any Holder from time to time of the Registrable
Securities to the aforesaid extent. In the event that any transferee of any
Holder of Registrable Securities shall acquire Registrable Securities, in any
manner, whether by gift, bequest, purchase, operation of law or otherwise, such
transferee shall, without any further writing or action of any kind, be entitled
to receive the benefits of and, if an Electing Holder, be conclusively deemed to
have agreed to be bound by and to perform all of the terms and provisions of
this Agreement to the aforesaid extent.

      (f) Counterparts. This Agreement may be executed in any number of
counterparts and by the parties hereto in separate counterparts, each of which
when so executed shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.

      (g) Headings. The headings in this Agreement are for convenience of
reference only and shall not limit or otherwise affect the meaning hereof.

      (H) GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK.

      (i) Severability. In the event that any one or more of the provisions
contained herein, or the application thereof in any circumstances, is held
invalid, illegal or unenforceable in any respect for any reason, the validity,
legality and enforceability of any such provision in every other respect and of
the remaining provisions hereof shall not be in any way impaired or affected
thereby, it being intended that all of the rights and privileges of the parties
hereto shall be enforceable to the fullest extent permitted by law.

      (j) Survival. The respective indemnities, agreements, representations,
warranties and other provisions set forth in this Agreement or made pursuant
hereto shall remain in full force and effect, regardless of any investigation
(or any statement as to the results thereof) made by or on behalf of any
Electing Holder, any director, officer or partner of such Holder, any agent or
underwriter, any director, officer or partner of such agent or underwriter, or
any controlling person of any of the foregoing, and shall survive the transfer
and registration of the Registrable Securities of such Holder.
<PAGE>
      Please confirm that the foregoing correctly sets forth the agreement
between the Company and you.

                                           Very truly yours,

                                           Juniper Networks, Inc.


                                           By: /s/ Lisa C. Berry
                                               ---------------------------------
                                               Name:  Lisa C. Berry
                                               Title: Vice President, General
                                                      Counsel and Secretary

Accepted as of the date hereof:
Goldman, Sachs & Co.



By:  /s/ Goldman, Sachs & Co.
     -----------------------------------
          (Goldman, Sachs & Co.)






                [Signature page to Registration Rights Agreement]
<PAGE>
                                                                      APPENDIX A

                             JUNIPER NETWORKS, INC.
                        NOTICE OF REGISTRATION STATEMENT
                                       AND
                      SELLING SECURITYHOLDER QUESTIONNAIRE
                                     (DATE)

      Juniper Networks, Inc. (the "Company") has filed or intends shortly to
file with the United States Securities and Exchange Commission (the
"Commission") a preliminary registration statement on Form S-3 (the "Shelf
Registration Statement") for the registration and resale under the United States
Securities Act of 1933, as amended (the "Securities Act"), of the Company's Zero
Coupon Convertible Senior Notes due June 15, 2008 (CUSIP No. 48203R AB 0) (the
"Notes"), and common stock issuable upon conversion thereof, in accordance with
the terms of the Registration Rights Agreement, dated as of June 2, 2003 (the
"Registration Rights Agreement"), between the Company and the purchaser named
therein (the "Purchaser"). A copy of the Registration Rights Agreement is
attached hereto. All capitalized terms not otherwise defined herein shall have
the meanings ascribed thereto in the Registration Rights Agreement.

      In order to have Registrable Securities included in the Shelf Registration
Statement (or a supplement or amendment thereto), this Notice of Registration
Statement and Selling Securityholder Questionnaire ("Notice and Questionnaire")
must be completed, executed and delivered to the Company at the address set
forth herein for receipt ON OR BEFORE [insert date that is 28 days from the
Notice Date] (the "Questionnaire Deadline"). Unless the Company otherwise
consents, beneficial owners of the Registrable Securities who do not complete,
execute and return this Notice and Questionnaire by such date (i) will not be
named as selling securityholders in the Shelf Registration Statement (or a
supplement or amendment thereto) and related Prospectus as of the date the Shelf
Registration is declared effective and (ii) may not sell their Registrable
Securities pursuant thereto. Any holder of securities who has not provided a
completed and signed Notice and Questionnaire prior to the Questionnaire
Deadline will not be entitled to receive Liquidated Damages or such Holder's
Registrable Securities. Beneficial owners of Registrable Securities not having
returned a Notice and Questionnaire by the Questionnaire Deadline may, however,
receive another Notice and Questionnaire from the Company upon request.
Following the Company's receipt of a completed and signed Notice and
Questionnaire, the Company will include the Registrable Securities covered
thereby in the Shelf Registration Statement, subject to certain restrictions
described in the Registration Rights Agreement.

      Certain legal consequences arise from being named as a selling
securityholder in the Shelf Registration Statement and related Prospectus.
Accordingly, holders and beneficial owners of Registrable Securities are advised
to consult their own securities law counsel regarding the consequences of being
named or not being named as a selling securityholder in the Shelf Registration
Statement and related Prospectus.

      The term "Registrable Securities" is defined in the Registration Rights
Agreement to mean all or any portion of the Notes issued under the Trust
Indenture and the common stock issuable upon conversion of such Notes, provided,
however, that a security ceases to be a Registrable Security when it is no
longer a Restricted Security.

      The term "Restricted Security" is defined in the Registration Rights
Agreement to mean any Note or common stock issuable upon conversion thereof
except any such Note or common stock which (i) has been registered pursuant to
an effective registration statement under the Securities Act and sold in a
manner contemplated by the Shelf Registration Statement, (ii) has been
transferred in compliance with Rule 144 under the Securities Act (or any
successor provision thereto) or (iii) has otherwise been transferred and a new
Note or share of common stock not subject to transfer restrictions under the
Securities Act has been delivered by or on behalf of the Company in accordance
with the Indenture.
<PAGE>
                                    ELECTION

      The undersigned holder (the "Selling Securityholder") of Registrable
Securities hereby elects to include in the Shelf Registration Statement the
Registrable Securities beneficially owned by it and listed below in Item (3)
(unless otherwise specified under Item 3). The undersigned, by signing and
returning this Notice and Questionnaire, agrees to be bound with respect to such
Registrable Securities by the terms and conditions of this notice and
Questionnaire and the Registration Rights Agreement, including, without
limitation, Section 5 of the Registration Rights Agreement, as if the
undersigned Selling Securityholder were an original party thereto.

      Upon any sale of Registrable Securities pursuant to the Shelf Registration
Statement, the Selling Securityholder will be required to deliver to the Company
and the Trustee the Notice of Transfer (completed and signed) set forth in
Exhibit 1 attached to this Notice and Questionnaire and hereby undertakes to do
so.

      The Selling Securityholder hereby provides the following information to
the Company and represents and warrants that such information is accurate and
complete:
<PAGE>
                                  QUESTIONNAIRE

(1)   (a)   Full Legal Name of Selling Securityholder:


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

      (b)   Full Legal Name of Registered Holder (if not the same as in (a)
            above) of Registrable Securities Listed in (3) Below:

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

      (c)   Full Legal Name of DTC Participant (if applicable and if not the
            same as (b) above) Through Which Registrable Securities Listed in
            (3) Below are Held:


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

(2)         Address for Notices to Selling Securityholder:


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

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

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

            Telephone:
                      ----------------------------------------------------------

            Fax:
                ----------------------------------------------------------------

            Contact:
                    ------------------------------------------------------------

(3)         Beneficial Ownership of Registrable Securities:

            Except as set forth below, the undersigned Selling Securityholder
            does not beneficially own any Notes or common stock previously
            issued upon conversion, repurchase or redemption of any Note.

            Principal amount of Notes beneficially owned:


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

            Number of shares of common stock beneficially owned and issued to
            date upon conversion, repurchase or redemption of Notes (if any):


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

            Number of shares of common stock (if any) issued upon conversion,
            repurchase or redemption of Registrable Securities which are to be
            included in the Shelf Registration Statement:


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

(4)         Other shares of common stock or other Notes of the Company owned by
            the Selling Securityholder:

            Except as set forth below, and under item (3) above, the undersigned
            Selling Securityholder is not the beneficial or registered owner of
            any shares of common stock or any other securities of the Company.
<PAGE>
            State any exception here:


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

(5)         Relationships with the Company:

            Except as set forth below, neither the Selling Securityholder nor
            any of its affiliates, officers, director or principal equity
            holders (5% or more) has held any position or office or has had any
            other material relationship with the Company (or its predecessors or
            affiliates) during the past three years.

            State any exceptions here:


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

(6)         Plan of Distribution:

            Except as set forth below, the undersigned Selling Securityholder
            intends to distribute the Registrable Securities listed above in
            Item (3) only as follows (if at all): Such Registrable Securities
            may be sold from time to time directly by the undersigned Selling
            Securityholder or, alternatively, through broker-dealers or agents.
            Such Registrable Securities may be sold in one or more transactions
            at fixed prices, at prevailing market prices at the time of sale, at
            varying prices determined at the time of sale, or at negotiated
            prices. Such sales may be effected in transactions (which may
            involve crosses or block transactions) (i) on any national
            securities exchanges or U.S. inter-dealer quotation system of a
            registered national securities association on which the Registrable
            Securities may be listed or quoted at the time of sale, (ii) in the
            over-the-counter market, (iii) in transactions otherwise than on
            such exchanges or services or in the over-the-counter market, or
            (iv) through the writing of options. In connection with sales of the
            Registrable Securities or otherwise, the Selling Securityholder may
            enter into hedging transactions with broker-dealers, which may in
            turn engage in short sales of the Registrable Securities in the
            course of hedging the positions they assume. The Selling
            Securityholders may also sell Registrable Securities short and
            deliver Registrable Securities to close out such short positions, or
            loan or pledge Registrable Securities to broker-dealers that in turn
            may sell such securities.

            State any exceptions here:


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

            By signing below, the Selling Securityholder acknowledges that it
understands its obligation to comply, and agrees that it will comply, with the
prospectus delivery and other provisions of the Securities Act and Exchange Act
and the respective rules and regulations thereunder, particularly Regulation M.

            In the event that the Selling Securityholder transfers all or any
portion of the Registrable Securities listed in Item (3) above after the date on
which such information is provided to the Company, the Selling Securityholder
agrees to notify the transferee(s) at the time of the transfer of its rights and
obligations under this Notice and Questionnaire and the Registration Rights
Agreement.

            By signing below, the Selling Securityholder consents to the
disclosure of the information contained herein in its answers to Items (1)
through (6) above and the inclusion of such information in the Shelf
Registration Statement and related Prospectus. The Selling Securityholder
understands that such information will be relied upon by the Company in
connection with the preparation of the Shelf Registration Statement and related
Prospectus.

            In accordance with the Selling Securityholder's obligation under the
Registration Rights Agreement to provide such information as may be required by
law for inclusion in the Shelf Registration
<PAGE>
Statement, the Selling Securityholder agrees to promptly notify the Company of
any inaccuracies or changes in the information provided herein which may occur
subsequent to the date hereof at any time while the Shelf Registration Statement
remains in effect. All notices hereunder and pursuant to the Registration Rights
Agreement shall be made in writing by hand delivery, first-class mail, or air
courier guaranteeing overnight delivery as follows:

         To the Company:

         Juniper Networks, Inc.
         1194 North Mathilda Avenue
         Sunnyvale, California 94089
         Attention: General Counsel

         Once this Notice and Questionnaire is executed by the Selling
Securityholder and received by the Company, the terms of this Notice and
Questionnaire, and the representations and warranties contained herein, shall be
binding on, shall inure to the benefit of and shall be enforceable by the
respective successors, heirs, personal representatives, and assigns of the
Company and the Selling Securityholder with respect to the Registrable
Securities beneficially owned by such Selling Securityholder and listed in Item
(3) above. This Agreement shall be governed in all respects by the laws of the
State of New York.

         IN WITNESS WHEREOF, the undersigned, by authority duly given, has
caused this Notice and Questionnaire to be executed and delivered either in
person or by its duly authorized agent.

Dated:

--------------------------------------------------------------------------------
      Selling Securityholder
      (Print/type full legal name of beneficial owner of Registrable Securities)
      By:
         -----------------------------------------------------------------------
      Name:
           ---------------------------------------------------------------------
      Title:
            --------------------------------------------------------------------


         PLEASE RETURN THE COMPLETED AND EXECUTED NOTICE AND QUESTIONNAIRE FOR
RECEIPT ON OR BEFORE [DEADLINE FOR RESPONSE] TO THE COMPANY AT:

         Juniper Networks, Inc.
         1194 North Mathilda Avenue
         Sunnyvale, California 94089
         Attention: General Counsel
<PAGE>
                                                                       EXHIBIT 1
                                                                   TO APPENDIX A

              NOTICE TO TRANSFER PURSUANT TO REGISTRATION STATEMENT

Wells Fargo Bank Minnesota, N.A.
MAC N9303-110
Sixth and Marquette Avenue
Minneapolis, Minnesota 55749
Attention:  Corporate Trust Services

Juniper Networks, Inc.
1194 North Mathilda Avenue
Sunnyvale, California 94089
Attention: General Counsel

      Re:   Zero Coupon Convertible Senior Notes due June 15, 2008 (the "Notes")

Dear Sirs:

      Please be advised that         has transferred $           aggregate
principal amount of the above-referenced Notes or shares of the Company's common
stock, issued on conversion, repurchase or redemption of Notes, pursuant to the
Registration Statement Form S-3 (File No. 333-           ) filed by the Company.

      We hereby certify that the prospectus delivery requirements, if any, of
the Securities Act of 1933, as amended, have been satisfied with respect to the
transfer described above and that the above-named beneficial owner of the Notes
or common stock is named as a selling securityholder in the Prospectus dated or
in amendments or supplements thereto, and that the aggregate principal amount of
the Notes or number of common stock transferred are [a portion of] the Notes or
common stock listed in such Prospectus as amended or supplemented opposite such
owner's name.

Dated:                                        Very truly yours,
       -----------------------------


                                              ----------------------------------
                                                          (Name)

                                              By:
                                                  ------------------------------
                                                      (Authorized Signature)