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Forwarding of internetwork packets to a destination network via a selected one of a plurality of paths

  • US 5,845,091 A
  • Filed: 02/15/1996
  • Issued: 12/01/1998
  • Est. Priority Date: 02/15/1996
  • Status: Expired due to Term
First Claim
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1. A method for filtering an internetwork packet comprising:

  • providing a forwarding list that includes a plurality of entries that each specify a possible path to a destination wherein a first entry specifies a default path to the destination, said list is user programmable to prioritize entries;

    receiving a packet that is destined for the destination;

    forwarding the packet to the destination via the default path if the first entry indicates a valid path; and

    forwarding the packet to the selected destination via another path as indicated by another entry if the entry indicates an invalid path; and

    automatically resetting said first entry as said default path for a second packet.

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