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Multiparameter network fault detection system using probabilistic and aggregation analysis

  • US 20040193943A1
  • Filed: 02/12/2004
  • Published: 09/30/2004
  • Est. Priority Date: 02/13/2003
  • Status: Abandoned Application
First Claim
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1. A network monitoring system, comprising:

  • a rules server, running a plurality of separate rules which monitor aspects of a network, including at least a first rule that monitors operations of the network to produce a first alarm representing a first specified probability of attack on the network, based on a first network condition other than content of packets of information being processed by the network, and a second rule that detects content of network packets being processed by the network, to produce a second alarm representing a second specified probability of attack on the network, based on suspicious content in said network packets, and a third rule that correlates results of said first and second rules, to produce information indicative of a correlated probability of attack on the network that represents a higher probability than a probability represented by either said first alarm or said second alarm.

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