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Juniper Networks Announces General Availability of EX 3200 and 4200 Series High-Performance Ethernet Switches

SUNNYVALE, Calif., March 31, 2008 - Juniper Networks, Inc. (NASDAQ: JNPR), the leader in high-performance networking, today announced the immediate availability of the EX-series Ethernet switches. Launched recently at the company's Global Enterprise Event in New York City, Juniper's EX 3200 and EX 4200 switches are available today, and the EX 8200 series remains on schedule for availability in the second half of 2008.

"Juniper is now shipping the first members of a new family of high-performance Ethernet switches running on JUNOS software, our customer-proven single-source network operating system," said Hitesh Sheth, executive vice president and general manager of the Ethernet Platforms Business Group at Juniper Networks. "The EX 3200 and 4200 switches deliver operational simplicity and reliability to accelerate the deployment of applications and services across the extended enterprise to advance the economics of networking."

"Juniper has proven to be a strategic partner that is more interested in solving our problems and creating a solution than simply selling us a box," said Frank Ziegler, vice president of communications at the Philadelphia Stock Exchange. "The Juniper Networks EX-series is the fastest switch we've ever tested in our lab, and the solution gives us the opportunity to deliver consistency throughout our infrastructure, from the access layer, through the data center and out to the enterprise edge. Juniper's EX-series switches will also enable us to deliver an extensive layer of access control to perform defense-in-depth."

Juniper's EX 3200 series: Fixed-Configuration Platforms

The EX 3200 series switches are fixed-configuration Ethernet platforms offering a simple, cost-effective, standalone solution for low-density regional and corporate office deployments. Installed in wiring closets to provide network access, the 24- and 48-port EX 3200 switches offer simple plug-and-play 10/100/1000BASE-T connectivity to meet today's converged network requirements. Full and partial Power over Ethernet (PoE) options are available for supporting IP-enabled devices such as telephones, security cameras and wireless LAN (WLAN) access points in converged network environments. Optional four-port GbE and two-port 10GbE uplink modules with pluggable optics are also available for supporting high-speed connections to other switches or upstream devices such as routers. A field-replaceable power supply and fan tray lowers mean time to repair.

Juniper's EX 4200 series: Virtual Chassis™ Technology

The EX 4200 series Ethernet switches with Virtual Chassis technology combine the reliability, scalability, and ease of management of modular systems with the economics and flexibility of stackable platforms, delivering a high-performance, scalable solution for data center, corporate and regional office environments. Like the EX 3200 switches, EX 4200 series switches offer 24- and 48-port 10/100/1000BASE-T configurations with full and partial PoE and optional GbE and 10GbE uplink modules, plus a 24-port fiber switch offering 100/1000BASE-X support. Using Virtual Chassis technology, up to 10 EX 4200 series switches can be interconnected over a 128 Gigabit-per-second (Gbps) backplane, creating a single virtual switch supporting up to 480 10/100/1000BASE-T ports and up to 40 GbE or 20 10GbE uplink ports. All EX 4200 series switches include HA features such as redundant, hot-swappable internal power supplies and field-replaceable, multi-blower fan trays to help deliver maximum uptime.

About Juniper Networks

Juniper Networks, Inc. is the leader in high-performance networking. Juniper offers a high-performance network infrastructure that creates a responsive and trusted environment for accelerating the deployment of services and applications over a single network. This fuels high-performance businesses. Additional information can be found at www.juniper.net.

Juniper Networks and Junos are registered trademarks of Juniper Networks, Inc. in the United States and other countries. The Juniper Networks and Junos logos are trademarks of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners.

This press release contains statements which may be considered forward-looking within the meaning of the U.S. federal securities laws, including statements relating to the expected future availability and benefits of Juniper Networks products. These statements are subject to known and unknown risks, uncertainties and other factors that may cause actual achievements to differ from those expressed or implied in this press release, including unforeseen delays or other risks associated with the product development and release process. Additional information concerning these and other risk factors is contained in the Risk Factors sections of Juniper Networks' Annual Report on Form 10-K. Juniper Networks assumes no obligation to update any forward-looking information contained in this press release.