Method for implementing multi-protection channel linear protection of optical transmission network

Method for implementing multi-protection channel linear protection of optical transmission network

  • CN 101,114,880 B
  • Filed: 09/05/2007
  • Issued: 05/23/2012
  • Est. Priority Date: 09/05/2007
  • Status: Active Grant
First Claim
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1. the implementation method of a multi-protection channel linear protection of optical transmission network;

  • It is characterized in that;

    The rule that said method is selected the protection passage is as follows;

    the protection passage that makes the definite use of protocol processor rule according to a preconcerted arrangement of switching head end and tail end;

    If switch is that trigger simultaneously at the two ends of network, and the operating position of the protocol processor at the two ends protection passage of making a strategic decision out is inconsistent, then uses the big protection passage of numbering;

    If the head end that folk prescription to fault, is switched is initiated switching request, then tail end sends protocol byte according to the decision-making of head end to the corresponding protection passage;

    Said method realizes that protection may further comprise the steps;

    The protocol processor of S1, tail end is judged the protection the passage whether warning information that receives has indicated institute to use, and is then to use the protection passage of said warning information indication to transmit protocol byte, goes on foot otherwise get into second;

    The protection passage transmission protocol byte that the protocol processor of S2, tail end selects institute to use according to the rule of selecting the protection passage;

    The protection channel number of use is set in the reserve bytes position of protocol byte;

    The protocol processor of S3, head end and tail end is set up or is cancelled protection and switches according to protocol byte.

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