Limited Power of Attorney - Securities Compliance

This statement confirms that the undersigned, as an
officer, director or beneficial owner of more than 10%
of any class of any equity security of Juniper
Networks, Inc. (the "Corporation"), hereby appoints
Mitchell L. Gaynor and Mary Anne Becking, and each of them,
the undersigned's true and lawful
attorneys-in-fact and agents to complete
and execute such Forms 144, Forms 3, 4 and 5 and
other forms (including any amendments thereto) as
such attorney shall in his or her discretion determine
to be required or advisable pursuant to Rule 144
promulgated under the Securities Act of 1933 (as
amended), Section 16 of the Securities Exchange Act
of 1934 (as amended) and the rules and regulations
promulgated thereunder, or any successor laws and
regulations, as a consequence of the undersigned's
ownership, acquisition or disposition of securities of
the Corporation, and to do all acts necessary in order
to file such forms with the Securities and Exchange
Commission, any securities exchange or national
association, the Corporation and such other person or
agency as the attorneys shall deem appropriate.  The
undersigned hereby ratifies and confirms all that said
attorneys-in-fact and agents shall do or cause to be
done by virtue hereof.  The authority of
Mitchell L. Gaynor and Mary Anne Becking under this
Limited Power of Attorney shall continue until the
undersigned is no longer required to file Forms 144,
Forms 3, 4 and 5 with regard to the undersigned's
ownership of or transactions in securities of the
Corporation, unless earlier revoked in writing.  The
undersigned acknowledges that
Mitchell L. Gaynor and Mary Anne Becking are not
assuming any of the undersigned's responsibilities to
comply with Section 16 of the Securities Exchange
Act of 1934 (as amended) or Rule 144 promulgated
under the Securities Act of 1933 (as amended).

This Limited Power of Attorney is executed as of the
date set forth below.

__/s/ Robert Muglia____________
Signature



_____10/5/2011__________________
Date