AMCC and Cisco Systems to develop OC-48 and OC-192 resilient packet ring technology

Applied Micro Circuits Corp. (AMCC) (Nasdaq:AMCC), a provider of high-bandwidth silicon connectivity solutions for optical networks, announced the development of an OC-48 and OC-192 Resilient Packet Ring (RPR) roadmap with the first product utilizing the Spatial Reuse Protocol (SRP) developed by Cisco Systems and AMCC's framer and Physical Layer technology.

RPR technology provides for the efficient and dynamic mapping of bandwidth between various nodes on a ring network. RPR technology also protects traffic without allocating 50 percent of the ring bandwidth as "standby bandwidth" usually found in normal SONET rings. Instead, RPR allocates 100 percent of the bandwidth to working traffic and only reduces allocation on a node-by-node basis in protection circumstances.

Currently over 150 service provider customers are utilizing the Cisco resilient packet ring solution incorporating the SRP protocol, Dynamic Packet Transport (DPT), and more than 10,000 Cisco DPT ports have been shipped. Cisco has submitted SRP, which is based on open specifications and is freely available, to the IEEE 802.17 RPR Working Group for consideration as the industry standard. To accelerate this standardization, AMCC is actively participating in driving convergence amongst members companies of the RPR Alliance including Cisco Systems, Nortel Networks, Luminous Networks, Lantern Communications and Dynarc Inc.

The RPR/SRP series of devices from AMCC will be available as standard products to all customers worldwide. The first SRP product from AMCC will be sampling to development partners in mid 2001.

About AMCC:

AMCC designs, develops, manufactures and markets high-performance, high-bandwidth silicon solutions for optical networks. For more information, visit www.amcc.com.