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Providing a backup network topology without service disruption

  • US 9,176,832 B2
  • Filed: 03/15/2013
  • Issued: 11/03/2015
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. A method, comprising:

  • detecting, by a primary root node, one or more neighboring root nodes based on information received from first-hop nodes in a shared-media communication network;

    selecting a backup root node from the neighboring root nodes;

    receiving a network identification and a corresponding mesh group key from the backup root node; and

    notifying the first-hop nodes of the backup root node along with the network identification and the corresponding mesh group key to cause the first-hop nodes to migrate to the backup root node when connectivity to the primary root node fails, while maintaining a subordinate state.

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