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Proactive timer-based local repair path communication in reactive routing networks

  • US 9,232,458 B2
  • Filed: 08/03/2012
  • Issued: 01/05/2016
  • Est. Priority Date: 03/23/2012
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • determining, by an intermediate node between a source node and a destination node, a source route in use from a source to a destination in a reactive routing computer network;

    receiving, by the intermediate node, a request to provide local repair for the source route for duration of a timer set by the source, wherein the request is originated by the source node and includes the timer and a proactive repair bit;

    storing the timer at the intermediate node;

    discovering, in response to the request, a local repair path based on a limited-scope discovery by the intermediate node;

    maintaining, by the intermediate node, the local repair path for the source route until expiration of the timer; and

    after expiration of the timer, flushing the local repair path at the intermediate node.

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