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Method and system for determining network characteristics using routing protocols

  • US 7,423,979 B2
  • Filed: 09/26/2003
  • Issued: 09/09/2008
  • Est. Priority Date: 05/18/2001
  • Status: Expired due to Fees
First Claim
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1. A method for determining a topology of a network, the method comprising:

  • communicating with a first router in the network;

    querying a first link state database of the first router for first Type 1 and Type 2 link state advertisements in a first area;

    importing the Type 1 and Type 2 link state advertisement into a network topology information database; and

    sweeping all networks in the first area announced by the first router and which make Type 3, Type 4, Type 5 or Type 7 announcements.

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