April 30, 2021

United States Securities and Exchange Commission

100 F Street N.E.

Washington, D.C. 20549

Re: Notice of Disclosure filed in the Quarterly Report on Form 10-Q under Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012 and Section 13(r) of the Exchange Act

Ladies and Gentlemen:

Pursuant to Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012 and Section 13(r) of the Securities Exchange Act of 1934, as amended, notice is hereby provided that Juniper Networks, Inc. has made disclosure pursuant to those provisions in its Quarterly Report on Form 10-Q for the quarter ended March 31, 2021, which was filed with the Securities and Exchange Commission on April 30, 2021.

Very truly yours,

/s/ Brian M. Martin

Brian M. Martin

Senior Vice President and General Counsel

Juniper Networks, Inc.