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Juniper Networks Continues to Lead in Key Security Technology Markets

Infonetics Research Recognizes Juniper Networks As The SSL VPN Product Market Share Leader And A Leader In In-line Intrusion Detection And Prevention

SUNNYVALE, Calif., March 16, 2005 - Juniper Networks, Inc. (Nasdaq: JNPR) today announced that it continues to be the market share leader in the Secure Sockets Layer Virtual Private Network (SSL VPN) market, according to Infonetics Research, Inc.'s recent report titled: "Network Security Appliances and Software Quarterly Worldwide Market Share and Forecasts for 4Q04." According to the report, Juniper Networks garnered 42 percent revenue market share within the SSL VPN product category during the fourth quarter of 2004 and 46 percent revenue market share for the full year. The report forecast the SSL VPN market to reach $554 million by CY08.

"Juniper holds a strong first place position and has been the SSL VPN leader throughout 2004," stated Jeff Wilson, senior analyst at Infonetics Research. "The industry is abuzz with customer demand for SSL VPNs, especially in EMEA and Asia-Pac. Worldwide SSL VPN gateway revenue will grow 99 percent by 4Q05. New SSL VPN product offerings for small-to-medium enterprises, including localization features, are signs that both the technology and the market are maturing. With the most mature and proven product, Juniper is well placed in this burgeoning market."

The same report recognized Juniper Networks as the leader in network-based in-line Intrusion Detection and Prevention Systems (IDS/IPS) unit shipments, with 30 percent market share. Customers continue to recognize the value of Juniper Networks NetScreen Intrusion Detection and Prevention (IDP) products, which, in a single device, provide the ability to detect and prevent application-level attacks in real-time before they reach the intended victims.

David Flynn, vice president of Products, Security Products Group at Juniper Networks, said, "Our continued market share leadership is not only a result of continued innovation, but also our attention to customers internationally. Our vision of secure and assured networking has resonated with customers across the world. The global adoption rate for our products has been steadily growing, allowing us to hold strong as the number one SSL VPN provider worldwide and the leader in IDP."

To obtain the "Network Security Appliances and Software Quarterly Worldwide Market Share and Forecasts for 4Q04" report, please contact Larry Howard at (916) 933-3543 or larry@infonetics.com.

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 are registered trademarks of Juniper Networks, Inc. in the United States and other countries.

This press release contains specialized projections, statements and data provided by third parties, including Infonetics Research, Inc. Juniper Networks does not adopt these projections, statements or data, does not warrant or guarantee the accuracy or completeness of such data or statements and does not undertake or assume any duty to update them in the future.