AT&T Veteran Hossein Eslambolchi Joins Packet Design's Board of Directors.

SANTA CLARA, Calif. -- Packet Design, the pioneer in the field of route analytics solutions for managing large IP networks, has appointed Dr. Hossein Eslambolchi, former chief technology officer of AT&T, to its board of directors.

Dr. Eslambolchi is currently chairman of 2020 Venture Partners, which provides technology and operations consulting to private equity and venture capital firms in the area of telecommunications IP software and infrastructure. In addition serving as AT&T's CTO from 2000 to 2005, he was president of the AT&T Global Networking Technology Services, president and CEO of AT&T Labs, and chief information officer during his 19 years with the company. Called "a bold, pragmatic visionary" by Business Week Magazine, Dr. Eslambolchi has won numerous awards, including the AT&T Science and Technology Medal, and holds more than 800 patents.

Jack Bradley, Packet Design CEO, said, "Dr. Eslambolchi has been one of the major evangelists behind service providers' adoption of the IP [Internet Protocol] architectures that enable all kinds of devices to work together on the same network. As a board member, he will provide Packet Design with invaluable guidance as we strengthen our presence in the service provider market, where better network visibility is a critical requirement for delivering effective services to customers."

"With everything converging over IP, including sensitive voice and video communication, service providers need a way to manage their networks at the IP layer," said Dr. Eslambolchi. "Packet Design's real-time IP routing and network-wide traffic analysis technology is giving many of the world's leading providers and mobile operators an edge by helping them ensure high-quality service delivery and more cost-effective operations."

Packet Design investors include Advanced Technology Partners (ATV), Masthead Venture Partners, Mayfield Fund, Allegis Capital and Juniper Networks. Other members of Packet Design's board include Bradley; Judy Estrin (chairman); Wes Raffel, general partner at ATV; Yogen Dalal, managing partner at Mayfield; and Stephen K. Smith, general partner at Masthead.

About Packet Design, Inc.

Packet Design, Inc., pioneered the field of route analytics and is the leading supplier of network appliances that provide routing-layer visibility into IP networks. The company's products create an accurate layer 3 topology map, analyze routing events, and provide a unique end-to-end, "path-aware" view of network traffic (including MPLS-VPN customer traffic), letting network engineers quickly pinpoint network problems and accurately model changes. Packet Design solutions help manage networks in hundreds of organizations, including many of the world's largest service providers, global enterprises (financial, retail pharmaceutical and other firms), government agencies and educational institutions.

Packet Design was founded in March 2003 by serial entrepreneur and former Cisco Chief Technology Officer Judy Estrin and former Cisco Chief Scientist Van Jacobson. For more information, visit www.packetdesign.com.