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Juniper Networks, Inc. Schedules Q4'04 and Year-End 2004 Financial Release January 18, 2005 at 1:15 p.m. Pacific Time

Sunnyvale, CA - January 5, 2005 - Juniper Networks, Inc. (NASDAQ: JNPR) today announced it will release its 4th quarter and year-end financial results for the period ending December 31, 2004, on January 18, 2005 and will host a conference call on January 18, 2005 at 1:45 p.m. (Pacific Time), to be broadcasted live over the Internet. To participate via telephone, the dial-in number is 800-731-1045, or 212-676-5394 for international callers. Please call ten minutes prior to the scheduled conference call time. For the live web cast, go to the Juniper Networks website at www.juniper.net and access the investor relations section.

The conference call will be archived on the Juniper Networks website until February 28, 2005. A replay will be accessible by telephone after 3:00 p.m. Pacific Time through January 25th, 2005 by dialing 800-633-8284 (or 402-977-9140), reservation number, 21227354. The replays will be available 24 hours/day, including weekends.

About Juniper Networks, Inc.

Juniper Networks is the leader in enabling secure and assured communications over a single IP network. The company’s purpose-built, high performance IP platforms enable customers to support many different services and applications at scale. Service providers, enterprises, governments and research and education institutions worldwide rely on Juniper Networks to deliver products for building networks that are tailored to the specific needs of their users, services and applications. Juniper Networks' portfolio of proven networking and security solutions supports the complex scale, security and performance requirements of the world’s most demanding networks. Additional information can be found at www.juniper.net.

Juniper Networks, the Juniper Networks logo, NetScreen, NetScreen Technologies, the NetScreen logo, NetScreen-Global Pro, ScreenOS, and GigaScreen are registered trademarks of Juniper Networks, Inc. in the United States and other countries.