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KT Kornet Transforms Network with Routing Platforms from Juniper Networks

Korea's Largest Internet Service Provider Expands T-series Backbone Deployment to Support Increased Network Traffic

SUNNYVALE, Calif., December 23, 2003 - Juniper Networks Inc. (Nasdaq: JNPR) today announced that South Korea's largest Internet service provider, KT Kornet, has again selected the T-series routing platform to transform its business of networking.

The T640 Routing Node was selected for KT Kornet's backbone network upgrade to accommodate rapid growth in network traffic as Korean consumers and corporations embrace digital technologies. The T640 meets KT Kornet's requirements today with the ability to scale in the future. This new deployment follows previous deployments of the T640 in initial phases of KT Kornet's backbone network deployment.

"We chose the Juniper Networks T-series routing platform because it can comfortably accommodate traffic growth across our Internet backbone network, which has been in the order of 20 per cent a year," said Jay Lee, Senior Manager, Network Planning Group of KT.

"Our projections are that commercial and consumer IP services such as ADSL, VDSL and access services based on metro switches will grow to 350 Gbps by the end of 2004. The T640 can accommodate adding new services while also enhancing the performance and expanding the capacity of our backbone network. KT Kornet has been using the T-series in the core backbone network since October 2002 and its stability and feature set have been tested and proven time and time again."

With the projected traffic growth, KT Kornet made scalability and longevity a mandatory requirement. The T640's Matrix Technology configuration, which will enable multiple T640 platforms to interconnect and operate as a single router while preserving valuable revenue-generating ports, ensures the future-proofing of the backbone. The Matrix Technology will ultimately transform multiple individual T640 Routing Nodes into an efficient "Routing Matrix" that delivers ten or more terabits of throughput.

"South Korea leads the world in broadband usage with approximately 21 subscribers for every 100 people," said Adam Judd, vice president, Asia Pacific for Juniper Networks. "KT Kornet is at the forefront of the response to this growth and we are delighted to partner with it to build the foundation of South Korea's digital future."

About Juniper Networks, Inc.

Juniper Networks transforms the business of networking by converting a commodity - bandwidth - into a dependable, secure and highly valuable corporate asset. Founded in 1996 to meet the stringent demands of service providers, Juniper Networks is now relied upon by the world's leading network operators, government agencies, research and education institutions, and information-intensive enterprises as the foundation for uncompromising networks. The Infranet Initiative uses Juniper Networks MINT (Model for InfraNet Transformation) as its underlying framework. Juniper Networks is headquartered in Sunnyvale, California. Additional information can be found at www.juniper.net.

Juniper Networks is registered in the U.S. Patent and Trademark Office and in other countries as a trademark of Juniper Networks, Inc. ERX, ESP, E-series, Internet Processor, J-Protect, JUNOS, JUNOScript, JUNOSe, M5, M7i, M10, M10i, M20, M40, M40e, M160, M-series, NMC-RX, SDX, T320, T640, and T-series are trademarks of Juniper Networks, Inc. All other trademarks, service marks, registered trademarks, or registered service marks are the property of their respective owners.