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State information and routing table updates in large scale data networks

  • US 6,944,131 B2
  • Filed: 12/30/2003
  • Issued: 09/13/2005
  • Est. Priority Date: 09/27/1999
  • Status: Expired due to Fees
First Claim
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1. A network comprising:

  • a plurality of nodes;

    links interconnecting said nodes; and

    a plurality of network controllers, each of said network controllers having an associated set of subtending nodes belonging to said plurality of nodes;

    wherein;

    each node of said plurality of nodes is operable to elect a primary network controller from said plurality of network controllers; and

    each network controller of said plurality of network controllers is operable to determine, for each subtending node in said associated set of subtending nodes;

    a route set to each other subtending node in said associated set of subtending nodes; and

    a route set to at least one subtending node in said set of subtending nodes associated with each other network controller in said plurality of network controllers.

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