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Restoration in an automatically switched optical transport network

  • US 20040252635A1
  • Filed: 05/20/2004
  • Published: 12/16/2004
  • Est. Priority Date: 06/16/2003
  • Status: Abandoned Application
First Claim
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1. A method of restoring traffic in a GMPLS-controlled transmission network after occurrence of a failure, the transmission network comprising a number of network elements, each having a GMPLS controller, the GMPLS controllers being interconnected by a dedicated data network, said method comprising the steps of assigning a rank to each affected network element based on locally available information;

  • and sending restoration requests between the network elements in the order of said ranks.

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