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Packet switching apparatus

  • US 20020176414A1
  • Filed: 08/09/2001
  • Published: 11/28/2002
  • Est. Priority Date: 05/28/2001
  • Status: Active Grant
First Claim
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1. A packet switching apparatus with a plurality of pairs of input/output ports, forwarding packets it received to their destination, based on a session as point-to-point connection set up between a terminal and a destination network, comprising:

  • a pathfinding table to contain entries on a plurality of entry lines, to which, route information to be known when a first packet of a session is received and associated output information consisting of the identifier of an output port through which to send out the packet received, the identifier of an output tunnel consisting of one session or a bundle of a plurality of sessions through which packets are logically passed to a point in a network, and the identifier of an output session are defined; and

    a processing unit for packets received which searches said pathfinding table for an entry line matching with the route information included in a packet received, performs processing for the received packet, according to packet output route information specified on the searched out entry line, and sends out the received packet through the output port identified by the output port identifier on said specific entry line.

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