As filed with the Securities and Exchange Commission on May 3, 2005
Registration No. 333-________

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

CALCULATION OF REGISTRATION FEE

Table of Contents

PART II

INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3. Incorporation of Documents by Reference.

     The following documents and information previously filed by Juniper Networks, Inc. (the “Registrant”) with the Securities and Exchange Commission (the “Commission”) are hereby incorporated by reference in this registration statement:

     All documents filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934, as amended, on or after the date of this registration statement and prior to the filing of a post-effective amendment which indicates that all securities offered have been sold or which deregisters all securities then remaining unsold, shall be deemed to be incorporated by reference in this registration statement and to be part hereof from the date of filing of such documents.

     Any statement contained in any document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of this registration statement to the extent that a statement contained herein or in any subsequently filed document that also is, or is deemed to be,

incorporated by reference herein, modified or supersedes such statement. Except as so modified or superseded, such statement shall not be deemed to constitute a part of this registration statement.

Item 4. Description of Securities.

     Not applicable.

Item 5. Interests of Named Experts and Counsel.

     Not applicable.

Item 6. Indemnification of Directors and Officers.

     Delaware law provides that a corporation may eliminate or limit the personal liability of a director to the corporation or its stockholders for monetary damages for breach of fiduciary duty as a director, subject to certain exceptions. The effect of this provision is to eliminate the personal liability of directors to the corporation or its stockholders for monetary damages for actions involving a breach of their fiduciary duty of care, including any actions involving gross negligence. The Registrant’s amended and restated certificate of incorporation contains such a provision that eliminates the personal liability of its directors to the Registrant or its stockholders for monetary damages for breach of fiduciary duty as a director to the fullest extent permitted by applicable law.

     Delaware law also provides, in general, that a corporation has the power to indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by or in the right of the corporation), because the person is or was a director or officer of the corporation. Such indemnity may be against expenses (including attorneys’ fees), judgments, fines and amounts paid in settlement actually and reasonably incurred by the person in connection with such action, suit or proceeding, if the person acted in good faith and in a manner the person reasonably believed to be in or not opposed to the best interests of the corporation and if, with respect to any criminal action or proceeding, the person did not have reasonable cause to believe the person’s conduct was unlawful. In addition, under Delaware law, in general, a corporation has the power to indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the corporation to procure a judgment in its favor because the person is or was a director or officer of the corporation, against any expenses (including attorneys’ fees) actually and reasonably incurred by the person in connection with the defense or settlement of such action or suit if the person acted in good faith and in a manner the person reasonably believed to be in or not opposed to the best interests of the corporation.

     Additionally, under Delaware law, a corporation generally has the power to purchase and maintain insurance on behalf of any person who is or was a director or officer of the corporation against any liability asserted against the person in any such capacity, or arising out of the person’s status as such, whether or not the corporation would have the power to indemnify the person against such liability under the provisions of the law.

     The Registrant’s amended and restated certificate of incorporation and bylaws provide that the Registrant shall indemnify to the fullest extent permitted by law any person made or threatened to be made a party to an action, suit or proceeding (whether criminal, civil, administrative or investigative) by reason of the fact that such person is or was a director, officer, employee or agent of the Registrant or any predecessor or

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subsidiary of the Registrant, or serves or served at any other entity as a director or officer at the request of the Registrant or any predecessor or subsidiary of the Registrant, against expenses, including attorneys’ fees, judgments, fines and amounts paid in settlement actually and reasonably incurred in connection with such action, suit or proceeding. However, the aforementioned indemnification applies only if the indemnified person acted in good faith and in a manner he or she reasonably believed to be in or not opposed to the best interest of the Registrant, and with respect to any criminal action or proceeding, had no reasonable cause to believe his or her conduct was unlawful. The Registrant’s amended and restated certificate of incorporation and bylaws also provide that the Registrant may, but is not required, to provide the above indemnification (subject to the same qualifications) with respect to persons who are or were serving at the request of the Registrant or any predecessor or subsidiary of the Registrant as an employee or agent of another entity.

     The Registrant’s amended and restated certificate of incorporation and bylaws further provide that the Registrant shall indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the Registrant or any predecessor or subsidiary of the Registrant, to procure a judgment in the Registrant’s favor, by reason of the fact that he or she is or was a director or officer of the Registrant or any predecessor or subsidiary of the Registrant, or is or was serving at the request of the Registrant or predecessor or subsidiary of the Registrant, as a director, officer, employee or agent of another entity, against expenses, including attorneys’ fees, actually and reasonably incurred by him or her in connection with the defense or settlement of such action or suit. However, this indemnification applies only if the indemnified person acted in good faith and in a manner which the person reasonably believed to be in or not opposed to the best interests of the Registrant and no indemnification shall be made in respect of any claim, issue or matter as to which such person is adjudged to be liable to the Registrant, unless and only to the extent that the Delaware Court of Chancery or the court in which such action or suit was brought determines that such person is entitled to indemnity. The Registrant’s amended and restated certificate of incorporation and bylaws also provide that the Registrant may, but is not required, to provide the indemnification described in this paragraph (subject to the same qualifications) with respect to persons who are or were serving as employees and agents of the Registrant or any predecessor or subsidiary of the Registrant, or is or was serving at the request of the Registrant or any predecessor or subsidiary of the Registrant as a director, officer, employee or agent of another entity.

     The Registrant bylaws also allow the Registrant to advance to a director, officer, employee or agent of the Registrant the expenses incurred in defending a civil or criminal action, suit or proceeding in advance of the final disposition of such action, suit or proceeding upon receipt of an undertaking by or on behalf of the director, officer, employee or agent to repay such amount if it shall ultimately be determined that he or she is not entitled to be indemnified by the Registrant.

     The Registrant’s bylaws also provide that the Registrant shall have the power to purchase and maintain insurance on behalf of any person who is or was a director, officer, employee or agent of the Registrant or predecessor or subsidiary of the Registrant, or is or was serving at the request of the Registrant as a director, officer, employee or agent of another entity, against any liability asserted against him or her and incurred by him or her in any such capacity, or arising out of his or her status as such, whether or not the Registrant would have the power to indemnify him or her against such liability under the indemnification provisions of the Registrant’s bylaws.

Item 7. Exemption from Registration Claimed.

     Not applicable.

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Item 8. Exhibits.

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Item 9. Undertakings.

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SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Sunnyvale, State of California, on this 3rd day of May 2005.

POWER OF ATTORNEY

     KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Robert R.B. Dykes and Mitchell L. Gaynor, jointly and severally, his attorneys-in-fact, each with the power of substitution, for him in any and all capacities, to sign any amendments to this Registration Statement on Form S-8, and to file the same, with exhibits thereto and other documents in connection therewith, with the Securities and Exchange Commission, hereby ratifying and confirming all that each of said attorneys-in-fact, or his substitute or substitutes, may do or cause to be done by virtue hereof.

     Pursuant to the requirements of the Securities Act of 1933, as amended, this registration statement has been signed by the following persons in the capacities and on the dates indicated.

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INDEX TO EXHIBITS