Juniper Networks Continues to Lead in Key Security Technology Markets

Infonetics Research Recognizes Juniper Networks As The SSL VPN Market Share Leader And A Leader In High-End Firewall/VPN Revenue

SUNNYVALE, Calif., March 21, 2006 -- 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 4Q05.” According to the report, Juniper Networks garnered 32 percent revenue market share within the SSL VPN product category during the fourth quarter of 2005 and 33 percent revenue market share for the full year, which was more than double the next ranking competitor.

“Juniper continues to be a market leader, driving its security products revenue through innovation and high-performance. They posted significant growth in 4Q05 in the SSL VPN category, seizing the number one market share position in both revenue and units shipped since 2004. The Secure Access SSL VPN product line has maintained a significant revenue lead over other vendors since the inception of this product category,” said Jeff Wilson, principal analyst for VPNs and Security at Infonetics Research.

The same report recognized Juniper Networks as #2 in the high-end firewall and virtual private network (FW/VPN) product category (greater than or equal to $30,000 price band), with 34 percent revenue market share during 4Q05 and for the full year. The Juniper Networks high end firewall/VPN products include the NetScreen-5000 series, delivering up to 30Gbps high-end firewall and 15Gbps VPN throughput, and the Integrated Security Gateway (ISG) 1000 and 2000 firewall/VPNs. Juniper Networks set the standard for multi-service security gateways by offering medium-to-large enterprises, carriers and data centers the ISG 1000 and 2000 platforms as a single firewall/VPN service or with intrusion detection and prevention (IDP) as an elective add-on to protect its networks with increased levels of delivery and threat controls. Customers continue to recognize the value of Juniper Networks’ next generation firewall with intrusion detection and prevention capabilities.

“Juniper continues to give its high-end FW/VPN product line visibility with customer wins and new product introductions. According to our research, since the release of the ISG 1000, 2000 and IDP modules, Juniper has grown its high-end FW/VPN and intrusion prevention systems (IPS) revenue faster than the overall high-end firewall and IPS markets,” added Wilson.

To purchase the “Network Security Appliances and Software Quarterly Worldwide Market Share and Forecasts for 4Q05” 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 and the Juniper Networks 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.

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Juniper Networks, Inc.

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