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Method and apparatus for communications traffic engineering

  • US 7,230,924 B2
  • Filed: 03/28/2001
  • Issued: 06/12/2007
  • Est. Priority Date: 03/28/2001
  • Status: Expired due to Fees
First Claim
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1. A method for routing traffic in a network comprised of a plurality of links to selectively off-load traffic from congested portions of the network to portions that are less congested, comprising:

  • identifying which of said links are congested determining, for each of said links, that a utilization for the link exceeds a predetermined parameter associated with the link, said predetermined parameter a maximum link utilization, the maximum link utilization associated with all of the links and associated with a bandwidth that is below a maximum capacity of the link;

    identifying traffic trunks that contribute to traffic of the identified congested network links;

    selecting rerouting traffic trunks where each of the rerouting traffic trunks are traffic trunks that contribute to the traffic of the identified congested network links;

    ordering the rerouting traffic bunks in congestion contribution order; and

    rerouting portions of the traffic in the rerouting traffic trunks that contribute to the identified congested network links sufficient to reduce said link utilization to a value equal to or below said predetermined parameter.

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