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Network routing system for enhanced efficiency and monitoring capability

  • US 7,649,885 B1
  • Filed: 05/06/2002
  • Issued: 01/19/2010
  • Est. Priority Date: 05/06/2002
  • Status: Expired due to Fees
First Claim
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1. A network device, comprising:

  • a plurality of ports each configured to receive data packets or to transmit data packets from the network device;

    one or more memories;

    a plurality of integrated port controllers, each integrated port controller circuit configured to receive data packets from one or more ports from the plurality of ports and to forward data packets to one or more ports from the plurality of ports;

    a backplane; and

    an adapter coupled to the plurality of integrated port controllers and to the backplane;

    wherein each integrated port controller is configured toreceive a data packet received by the network device via a port from the plurality of ports,determine forwarding information by performing one or more lookups in the one or more memories using information extracted from a header portion of the received packet, the forwarding information indicative of how the received data packet is to be forwarded in the network device, andforward the data packet and the forwarding information to the adapter coupled to the integrated port controller;

    wherein the adapter is configured toreceive a data packet and forwarding information for the data packet from an integrated port controller from the plurality of integrated port controllers, andbased upon the forwarding information, forward the data packet received by the adapter from the integrated port controller either to another integrated port controller coupled to the adapter or to the backplane.

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