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Method for using an IP address-based routing protocol in an ATM environment

  • US 5,673,263 A
  • Filed: 10/25/1995
  • Issued: 09/30/1997
  • Est. Priority Date: 03/31/1995
  • Status: Expired due to Term
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First Claim
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1. A method of implementing IP (Internet Protocol) routing protocols in an Asynchronous Transfer Mode (ATM) network comprising a plurality of individual systems, wherein each individual system has a unique network address including a network part and an end system part, each of said parts including a plurality of fields, said method being implemented at one of said plurality of individual systems located within the ATM network and having route computing capabilities and comprising the steps of:

  • a) receiving a request that a call be established to a target system identified by a target ATM network address supplied with said request;

    b) analyzing the network part of the said target ATM network address to determine whether a routing protocol must be implemented in establishing a path to the target system;

    c) in those instances where a routing protocol must be implemented, selecting system-identifying data from selected fields of the network part of the target network ATM address (into) and incorporating them in an IP-format network address for accessing the target system; and

    ,d) implementing a selected IP routing protocol using the created IP-format network address for the target system;

    wherein the selected fields in the target ATM network address comprises an ACN field identifying a cluster of ATM systems and an HN field identifying a particular system within the identified cluster.

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