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UK's Largest Cable Operator Virgin Media Deploys Juniper Networks T-series to Meet Multiplay Demand

Upgraded Core Backbone Supports Virgin's Expansive Network Passing 50 Percent of Homes, 85 Percent of Businesses in UK

Sunnyvale, Calif., April 2, 2007 - Juniper Networks, Inc. (NASDAQ: JNPR) today announced that the Virgin Media Group, the UK's largest cable operator, has deployed Juniper Networks T-series core routers, including the multi-terabit TX Matrix, to upgrade its IP backbone network. As a central component of the Virgin Media next-generation IP network architecture, the T-series will enable the delivery of bandwidth-intensive multiplay services such as IPTV, video on demand and voice over IP. The agile and open core network will also facilitate and simplify the integration of many new customers and network assets, which are joining Virgin Media as the result of the merger between ntl, Virgin Mobile and Telewest Global in 2006.

Virgin Media provides high quality digital TV, Internet and telephone services to nearly 3 million subscribers throughout the UK. In addition to supporting all of its own broadband customers, Virgin Media also leases capacity on its core network to several of the UK's leading ISPs, so the Juniper Networks T-series will be supporting an expansive network capable of delivering Internet-based communications services to more than 12 million UK homes (more than 50 percent of the total households in the UK), and 85 percent of UK businesses.

"Service reliability, throughput speed and scalable capacity are the main criteria that will enable a successful roll-out of next-generation network services in both the immediate future and in the long term," said Rob Sim, Head of Network Architecture at Virgin Media. "We wanted to put support for 40G in place now, and both the T640 and TX Matrix platforms from Juniper enable us to support 40G as soon as needed. Also, as the capacity demands on our network grow, we can easily upgrade the T640 to TX Matrix as required, whilst maintaining both operational and service consistency without an operating system change."

With over 2,500 units deployed worldwide, Juniper Networks T-series is the industry's most scalable, feature-rich, and flexible core routing platform, with continual feature enhancements that ensure high performance and availability for the world's most demanding and advanced networks.

"The core of the IP network is an absolutely critical component of next generation multiplay networks, and we continue to see more and more of the industry's leading service providers like Virgin Media base their next generation core backbones on Juniper's T-series," said Gert-Jan Schenk, vice president of operations, EMEA, Juniper Networks. "We are very pleased to have been selected by the Virgin Media Group and look forward to delivering a core network that will support all of their many services with industry leading reliability, efficiency and scale."

Virgin Media also uses Juniper Networks integrated firewall/VPNs in its VoIP infrastructure, and the Juniper Networks Steel-Belted Radius family of high-performance RADIUS/AAA servers to provide centralized user authentication and access policy management.

About Juniper Networks, Inc.

Juniper Networks develops purpose-built, high performance IP platforms that enable customers to support a wide variety of services and applications at scale. Service providers, enterprises, governments and research and education institutions rely on Juniper to deliver a portfolio of proven networking, security and application acceleration solutions that solve highly complex, fast-changing problems in 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. JUNOS is a trademark of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners.