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Apparatus and method for two-stage packet classification using most specific filter matching and transport level sharing

  • US 20050226235A1
  • Filed: 04/08/2004
  • Published: 10/13/2005
  • Est. Priority Date: 04/08/2004
  • Status: Active Grant
First Claim
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1. A method comprising:

  • providing a plurality of bins stored in a memory, each of the bins including a number of rules, each rule specifying a source port range and a destination port range;

    identifying, from the plurality of bins, a bin corresponding to a network path and a protocol of a received packet;

    comparing a source port and a destination port of the received packet with the rules of the corresponding bin; and

    if the source port of the received packet is within the source port range of a rule and the destination port of the received packet is within the destination port range of the rule, applying an action associated with the rule to the received packet.

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