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Virtualizing the operation of intelligent network interface circuitry

  • US 7,660,306 B1
  • Filed: 01/12/2006
  • Issued: 02/09/2010
  • Est. Priority Date: 01/12/2006
  • Status: Active Grant
First Claim
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1. A method of operating network interface circuitry, wherein the network interface circuitry is configured to couple a host computer to a network to facilitate communication over the network between the host computer and a peer, the method comprising:

  • by the network interface circuitry,receiving data from the peer via the network; and

    processing the received data, including;

    where there is a layer-2 classification rule associated with characteristics of the received data, automatically applying the classification rule to the received data; and

    demultiplexing the received layer-2 packets according to destination queues associated with the host computer,wherein the method further comprises;

    applying to the received data a layer-3 classification rule associated with characteristics of the received data, thereby filtering ingress packets that have layer-2 characteristics not consistent with the layer-3 characteristics; and

    applying to the received data a VLAN classification rule associated with characteristics of the received data, thereby filtering ingress packets that have layer-2 characteristics and layer-3 characteristics that are not consistent with the VLAN characteristics.

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