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Tunnel reroute

  • US 7,233,569 B1
  • Filed: 05/19/1999
  • Issued: 06/19/2007
  • Est. Priority Date: 05/19/1999
  • Status: Expired due to Fees
First Claim
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1. A method for switching from a reserved first path between a source node and a destination node, the reserved first path comprising one or more interconnected nodes, to a reserved second path comprising one or more interconnected nodes comprising the steps of:

  • enabling the second path for data transfer between the source node and destination node; and

    disabling the first path for data transfer between the source node and the destination node after enabling the second path for data transfer;

    wherein the step of enabling further comprises;

    determining the nodes and links shared by the second path and the first path; and

    reserving resources in the second path not shared with the first path;

    wherein the step of determining further comprises;

    comparing a path identification field value and a tunnel session identification field value in a path message for the second path with the path identification field value and the tunnel session identification field value in the reserve message for the first path.

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