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Transparant non-disruptable ATM network

  • US 6,011,780 A
  • Filed: 05/23/1997
  • Issued: 01/04/2000
  • Est. Priority Date: 05/23/1997
  • Status: Expired due to Term
First Claim
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1. A method for providing non-disruptable service through a packet-based network comprising the steps of:

  • establishing a primary path and a secondary path between nodes in the network;

    providing network management means for communicating between the nodes of the network and for detecting network resource failures, the network management means monitoring the available, used and spare bandwidth capacity of the network through management actions;

    delivering an alarm indication management cell to specify the secondary path as a result of a network resource failure;

    calculating the available bandwidth along the secondary path; and

    re-routing a transmission from a primary path to a secondary path without the need for re-establishing communication.

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