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Pipeline method and system for switching packets

  • US 7,813,367 B2
  • Filed: 01/08/2007
  • Issued: 10/12/2010
  • Est. Priority Date: 05/06/2002
  • Status: Expired due to Fees
First Claim
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1. A system comprising:

  • a backplane;

    a first data pipeline, the first data pipeline coupling a media access control (MAC) interface configured to facilitate receipt and transmission of packets over a physical interface, a receive packet processor configured to perform processing of packets received from the MAC interface, a first memory configured to store packets processed by the receive packet processor, and a backplane manager configured to read the packets from the first memory, to compute an appropriate destination for the packets and to dispatch the packets to the backplane;

    a second data pipeline, the second data pipeline coupling a transmission accumulator configured to receive packets from the backplane and to organize the packets for transmission, a second memory configured to store packets processed by the transmission accumulator, a transmit packet processor configured to read the packets from the second memory and to schedule the transmission of packets, and the MAC interface; and

    a path for forwarding packets from the first memory to the transmission accumulator without using the backplane.

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