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System and method for improving network performance by controlling stub-routing behavior

  • US 7,898,981 B1
  • Filed: 03/31/2006
  • Issued: 03/01/2011
  • Est. Priority Date: 03/31/2006
  • Status: Active Grant
First Claim
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1. A system comprising:

  • a distribution router further comprising;

    a first module that characterizes additional routers connected to the distribution router as stub routers or non-stub routers and that provides a signal in response thereto, wherein a stub router is configured such that other routers do not send route queries to the stub router; and

    a second module that selectively queries the non-stub routers for route information and that does not query the stub routers for the route information based on the signal, wherein the second module includes a selective peer-querying module, wherein the selective peer-querying module includes instructions for selectively unicasting or multicasting queries from the distribution router to non-stub routers, and wherein the selective peer-querying module further includes instructions for multicasting a first set of instructions to the additional routers that instruct the stub routers to ignore or discard one or more subsequent multicast queries.

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