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Method and apparatus for network-level anomaly inference

  • US 8,145,745 B1
  • Filed: 12/28/2005
  • Issued: 03/27/2012
  • Est. Priority Date: 12/28/2005
  • Status: Expired due to Fees
First Claim
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1. A method of network-level anomaly inference in a network, comprising:

  • obtaining link load measurements for multiple time intervals, wherein each of the link load measurements is a load measurement for a link;

    obtaining routing data for the network;

    extracting link level anomalies using temporal analysis of the link load measurements over the multiple time intervals for the link; and

    inferring network-level anomalies from the link level anomalies and the routing data by reconstructing origin-destination flow anomalies by solving a series of ill-posed linear inverse problems.

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