News Release

Korea Telecom Selects Cisco Systems for Internet Data Center Projects

Cisco 12000 Series Internet Routers and Cisco 7500 Series Routers Chosen for Three New IDCs in Korea
Dec 18, 2001

SEOUL, Korea, December 18, 2001 - Cisco Systems, Inc. (NASDAQ: CSCO), the worldwide leader in networking for the Internet, today announced that it has been selected by Korea Telecom to provide networking equipment to establish new Internet Data Centers (IDCs) in Boondang, Kwangju, and Wonju, South Korea. The three new IDC locations will all utilize a combination of Cisco 12016 Internet Routers and Cisco 7500 Series Routers. Korea Telecom currently has twelve IDCs in various locations in South Korea, all of which utilize Cisco equipment in their backbone environments.

Korea Telecom chose Cisco Systems for the expansion of its IDC operations based on the successful track record of the Cisco 12016 Internet Routers and Cisco 7513 Routers in its existing network. Cisco's excellent customer service and on-the-ground support were also critical factors in Korea Telecom's decision.

"The deployment of Korea Telecom's Internet Data Centers are one of the most critical issues for the company. The combination of Cisco's technology and Korea Telecom's market leadership in this area allows us to provide an excellent service offering to our customers. We regard Cisco as a key supplier in the development of our IDC strategy," said Mr. Seong-Rak Kim, Korea Telecom's managing director of Internet Data Centers.

The Cisco 12016 Internet Router offers an industry leading innovative distributed architecture design that delivers high performance, scalability, guaranteed priority packet delivery and cost reduction. It features a 16-slot chassis and 80 Gbps switching capacity that is upgradeable to 320 Gigabits-per-second (Gbps). With a field-installable upgrade kit, the 12016 Internet Router can support Cisco's 10 Gbps line cards, including OC-192/STM-64, 4-port OC-48/STM-16 and 10-port Gigabit Ethernet. The Cisco 12000 Series is the only product in the market that provides switch fabric upgrades while also preserving customer's investment in their line cards.

The Cisco 12000 Series Internet Router is part of Cisco's family of multimillion packets-per-second (pps) Internet routing platforms for creating a full service Internet and is the premier Internet routing platform for backbone and high-speed edge applications. Cisco Systems' portfolio of 10 Gbps/OC-192 systems are designed to meet the challenge of building IP networks, the demand for bandwidth and the need to maintain investment protection. With its unique, modular distributed system architecture, the Cisco 12000 Series leads the industry with the only proven investment protection, the highest backbone and edge performance, and the only guaranteed priority packet delivery.

The Cisco 7500 router combines Cisco's' proven software technology with exceptional reliability, availability, serviceability, and performance features to meet the requirements of growing IP (Internet Protocol) networks. Based on a multiprotocol platform, and supporting a breadth of applications and services the Cisco 7500 router series is adaptable to meet the requirements of today's most mission-critical internetworks. The series' modularity of interfaces delivers mix and match functionality, providing enterprise and service-provider networks with the flexibility needed to meet the constantly changing requirements at the core and distribution points of the internetwork.

Yoon Kim, Cisco's managing director, Korea said, "We are very pleased to be expanding our cooperation with Korea Telecom and its IDC network project. Korea Telecom is one of the most advanced service provides in the world and we are confident the Cisco solution they have chosen will be a crucial part of their IDC network's success."

About Korea Telecom

Korea Telecom is the leading Telecom/ISP in Korea and operates the largest ADSL network worldwide with over 3 million subscriber lines in Korea.

Korea Telecom offers a full line of wire/wireless solutions including LAN/WAN, portal, web hosting, B2B/B2C, wireless, ADSL, ISDN, satellite and many other services.