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Self-reconfiguring spanning tree

  • US 7,760,668 B1
  • Filed: 06/30/2006
  • Issued: 07/20/2010
  • Est. Priority Date: 06/20/2006
  • Status: Active Grant
First Claim
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1. A method of modifying a spanning tree configuration for a group of packet switches in a common spanning tree domain, the method comprising:

  • automatically detecting a resource change selected from the group of resource changes consisting of;

    a change in the status of redundant backup hardware in the group packet switch;

    a change in at least one environmental parameter detected at the group packet switch;

    a chance in the rate of correctable errors detected at one or more points in the group packet switch;

    a change in hardware status affecting the packet throughput of the group packet switch;

    a change in status affecting the uplink capability of the group packet switch;

    a change in the capability of the group packet switch to process traffic with selected traffic attributes; and

    combinations thereof, that indicates the current spanning tree configuration is less than optimal for at least some traffic present in the spanning tree domain;

    in response to the resource change detection, automatically modifying at least one spanning tree parameter for at least one of the packet switches; and

    converging the common spanning tree domain to a new spanning tree solution in consideration of the at least one modified spanning tree parameter.

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