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Hierarchical tree-based protection scheme for mesh networks

  • US 7,203,743 B2
  • Filed: 12/28/2001
  • Issued: 04/10/2007
  • Est. Priority Date: 12/28/2001
  • Status: Active Grant
First Claim
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1. A method comprising:

  • extending a spanning hierarchical protection tree in a mesh network by;

    at a current node, receiving an invitation to become a child of a first adjacent node;

    if a minimum link bandwidth along a protection path from said current node to a root node of the spanning hierarchical protection tree which visits the first adjacent node is greater than a minimum link bandwidth of any existing protection path from said current node to said root node;

    designating said first adjacent node as a primary parent of said current node in said tree; and

    from said current node, sending an invitation to become a child of said current node in said tree to each adjacent node of said current node that is not said first adjacent node.

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