IP over ATM system using control messages to set up cut-through paths or bypass pipes in routers

  • US 6,343,322 B2
  • Filed: 07/27/1998
  • Issued: 01/29/2002
  • Est. Priority Date: 08/31/1994
  • Status: Expired due to Term
First Claim
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1. A network interconnection apparatus for transferring packets at a boundary of a plurality of networks, the apparatus comprising:

  • a control message processing unit configured to communicate with a previous hop node in one of the plurality of networks by a first control message including a first identification information for identifying an upstream path from the previous hop node to the network interconnection apparatus and a specification information for specifying a group of packets to be transferred on the upstream path, and configured to communicate with a next hop node in another of the plurality of networks by a second control message including a second identification information for identifying a downstream path from the network interconnection apparatus to the next hop node and a specification information for specifying a group of packets to be transferred on the downstream path;

    a memory unit configured to store a first identifier at a layer lower than layer 3 of the upstream path and a second identifier at a layer lower than layer 3 of the downstream path corresponding to the upstream path, according to the first and second control messages used by the control message processing unit; and

    a transfer unit configured to transfer a packet from the upstream path to the corresponding downstream path, referring to the memory unit.

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