Virtual egress packet classification at ingress

DC
  • US 7,107,352 B2
  • Filed: 07/12/2004
  • Issued: 09/12/2006
  • Est. Priority Date: 08/22/2001
  • Status: Expired due to Term
First Claim
Patent Images

1. In a network packet router having one or more ingress and egress ports, a system implemented at an ingress port for egress pass/drop determination for packets, comprising:

  • a rule set comprising header combinations and values for which a pass/drop decision may be applied, the set including an egress port identity for each header combination and value set; and

    a mechanism noting pertinent headers of a specific incoming packet, and an egress port to which the packet is to be sent, comparing the headers with rules in the rule set, and returning a determination of a rule to be applied.

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