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Packet network linear protection systems and methods in a dual home or multi-home configuration

  • US 9,960,993 B2
  • Filed: 06/27/2016
  • Issued: 05/01/2018
  • Est. Priority Date: 04/03/2014
  • Status: Active Grant
First Claim
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1. A linear protection method in a dual home or multi-home network configuration with an end node communicatively coupled to a plurality of home nodes, the linear protection method comprising:

  • operating a protection switch state machine based on a linear protection protocol at each of the plurality of home nodes and the end node, wherein the protection switch state machine is configured to support a plurality of linear protection protocols comprising the linear protection protocol;

    synchronizing the protection switch state machines with one another;

    implementing operations between the plurality of home nodes and the end node based on the protection switch state machines; and

    responsive to a fault, updating the associated protection switch state machines without synchronizing over a link associated with the fault and performing protection switching.

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