UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 14A
Proxy Statement Pursuant to Section 14(a) of the Securities
Exchange Act of 1934 (Amendment No.     )

		
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 	o    Preliminary Proxy Statement	
 	o    Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))	
 	o    Definitive Proxy Statement	
 	þ    Definitive Additional Materials	
 	o    Soliciting Material Pursuant to §240.14a-12	

Juniper Networks, Inc.

(Name of Registrant as Specified In Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)
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*** Exercise Your Right to Vote ***
Important Notice Regarding the Availability of Proxy Materials for the
Shareholder Meeting to Be Held on May 12, 2010

JUNIPER NETWORKS, INC.
JUNIPER NETWORKS, INC.
1194 N.MATHILDA AVENUE
SUNNYVALE, CA 94089-1206
Meeting Information
 	 	 	
Meeting Type: Annual Meeting	
For holders as of: March 15, 2010	
Date: May 12, 2010	 	Time: 9:00 A.M. PDT	
			
Location:	 	Juniper Networks, Inc.
1220 N. Mathilda Ave.
Building 3, Pacific Conference
Room, Sunnyvale, CA 94089	
You are receiving this communication because you hold shares in the above named company.
This is not a ballot. You cannot use this notice to vote these shares. This communication presents only an overview of the more complete proxy materials that are available to you on the Internet. You may view the proxy materials online at www.proxyvote.com or easily request a paper copy (see reverse side).
We encourage you to access and review all of the important information contained in the proxy materials before voting.
See the reverse side of this notice to obtain proxy materials and voting instructions.

   

 

—– Before You Vote —–
How to Access the Proxy Materials

Proxy Materials Available to VIEW or RECEIVE:
1.  Proxy Statement and Annual Report on Form 10K
How to View Online:
Have the 12-Digit Control Number available (located on the following page) and visit: www.proxyvote.com.
How to Request and Receive a PAPER or E-MAIL Copy:
If you want to receive a paper or e-mail copy of these documents, you must request one. There is NO charge for requesting a copy. Please choose one of the following methods to make your request:
1) BY INTERNET :      www.proxyvote.com
2) BY TELEPHONE :  1-800-579-1639
3) BY E-MAIL* :           sendmaterial@proxyvote.com
*	 	If requesting materials by e-mail, please send a blank e-mail with the 12-Digit Control Number (located on the following page) in the subject line.	
Requests, instructions and other inquiries sent to this e-mail address will NOT be forwarded to your investment advisor. Please make the request as instructed above on or before April 28, 2010 to facilitate timely delivery.
—– How To Vote —–
Please Choose One of the Following Voting Methods
Vote In Person: Many shareholder meetings have attendance requirements including, but not limited to, the possession of an attendance ticket issued by the entity holding the meeting. Please check the meeting materials for any special requirements for meeting attendance. At the meeting you will need to request a ballot to vote these shares.
Vote By Internet: To vote now by Internet, go to www.proxyvote.com . Have the 12 Digit Control Number available and follow the instructions.
Vote By Mail: You can vote by mail by requesting a paper copy of the materials, which will include a proxy card.

   

 

 	 	 	 	 	 	 	 		
Voting Items	 	 	 		
 	 	 	 	 	 		
The Board of Directors recommends that you vote FOR the following:	 	

1.	 	ELECTION OF DIRECTORS
Nominees	 	 	 		
 	 	01    Pradeep Sindhu	    02    Robert M. Calderoni	 	    03    William F. Meehan	 	 	 	 	 	 	 	 	
 	 	 	 	 	 	 	 	
The Board of Directors recommends you vote FOR the following proposal(s):	 	 	
 	 	 	 	 	 	 	 	
2.	 	Approval of the proposed amendment to the Juniper Networks, Inc. 2006 Equity Incentive Plan that increases the number of shares available for issuance thereunder.	 	 	
 	 	 	 	 	 	 	 	
3.	 	Ratification of Ernst & Young LLP, an independent registered public accounting firm, as auditors.	 	 	
 	 	 	 	 	 	 	 	
NOTE: THIS PROXY, WHEN PROPERLY EXECUTED, WILL BE VOTED AS DIRECTED OR, IF NO DIRECTION IS GIVEN, WILL BE VOTED “FOR” PROPOSALS 1, 2 AND 3.