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IRIS develops technology for low-cost networking

Posted: 10 Sep 2002 ?? ?Print Version ?Bookmark and Share

Keywords:switch routing? forwarding engines? processors? chip switch router designs? SDRAM?

IRIS Technologies Inc., and its India-based sister company IRIS Technologies India Pte Ltd, have developed what they claim as the first set of protocol independent lookup algorithms that take a new approach to searching data structures in switch routing applications.

The company has used these algorithms as the basis to develop a class of forwarding engines that can be run on ordinary, low-cost processors to achieve performance on the order of multiple OC-192 header forwarding speeds, using orders of magnitude smaller amounts of memory. The technique uses search structures and a patented way of storing the lookup tables in memory that minimize memory accesses per lookup as well as memory required for storing data.

The company plans to release this forwarding engine, optimized as an embedded core for use in telecoms, communications, industrial, and other SoC applications, including single chip switch router designs. The combination of 4 such RISC engines running at 100MHz will work with a common external memory of 32MB, made of SDRAM or SRAM, to achieve a forwarding rate of 20 million packets per second working as a Network Processing Unit (NPU).

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