Larscom and PacketStream Establish Technology Partnership.

MILPITAS, Calif.--(BUSINESS WIRE)--Nov. 16, 1999--

PacketStream's IP Traffic Shaping Technology Provides Real-Time

QoS for Larscom's Carrier-Class WAN Access Products

Larscom Incorporated (Nasdaq:LARS), a leading provider of WAN access equipment, today announced that the company has entered into a strategic relationship with PacketStream, Inc. and has licensed PacketStream's cutting-edge Synchronous Packet Switching (SPS) technology.

PacketStream's SPS software helps manage and prioritize latency-sensitive IP traffic such as voice, video or CD audio. This strategic partnership brings together Larscom's core expertise in WAN access and PacketStream's intelligent network traffic classification so that network managers and Internet service providers can classify and control network traffic, ensuring end-to-end quality of service (QoS) for their customers.

QoS Begins at Home

"If traffic is not shaped at the access point, QoS can't be delivered in the backbone. And, the smaller the pipe, the greater the problem," said George Fragos, Larscom's director of product management. "Very large pipes such as T3 are better able to self-correct because of the larger number of logical paths. With the tremendous growth and popularity of sending voice and video applications over Internet Protocol (IP), it is clear that Larscom's partnership with PacketStream promises to give service providers innovative solutions so they can offer a greater variety of services, and with new options for control of quality of service."

"We are committed to providing carrier-class access solutions that help service providers offer their customers higher valued services, as well as offering subscribers a means to better manage their WAN resources," said Becky Horn Larscom's VP of Marketing. "PacketStream's innovative SPS technology will help us leverage Larscom's strengths in transport and access giving us a strong position in the market, with an easily managed solution for the heterogeneous enterprise network."

Increased Performance for End-Users and Technology Investment for Service Providers

"Through the intelligence of micro and macro traffic management, guaranteed bandwidth allocation and microsecond latency, PacketStream's technology regulates IP traffic between a WAN and LAN thus providing real-time QoS to time-sensitive applications over IP," said Gloria Maceiko, PacketStream VP of Business Development and Sales. "The primary benefits that our partnership with Larscom brings to the service provider include an increased range of service offerings such as Voice and Video over IP with substantial cost savings in technology investment and maintenance."

PacketStream, Inc. is a privately held research and development company, specializing in bringing Inter-networking protocol (IP) based technology and advanced communications products to market. PacketStream was founded by Francis Dinha, Chairman and CEO. The background packet switching technology called Synchronous Packet Switching or SPS, is the foundation of these advanced products and PacketStream's next generation IP network concept The company headquarters are in Pleasanton, California.

Larscom Incorporated is a leading provider of high-speed wide area network (WAN) access equipment. Its customers include carriers, Internet service providers, corporate users, and government agencies worldwide. The company's headquarters are located at 1845 McCandless Drive, Milpitas, California 95035.