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System and method for managing computer networks

  • US 8,667,047 B2
  • Filed: 03/21/2008
  • Issued: 03/04/2014
  • Est. Priority Date: 11/21/2002
  • Status: Active Grant
First Claim
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1. A method for monitoring traffic in a computer network comprising acts of:

  • receiving, by an interface of a flow capture device coupled to the computer network via the network interface, flow information related to network traffic of a plurality of hosts in the computer network;

    determining, by a flow controller device, similarity between the plurality of hosts in the computer network based on the flow information;

    calculating similarity values representing the similarity between the plurality of hosts;

    arranging the hosts into hierarchical clusters based on the similarity values, comprising arranging each of a plurality of entities in a separate cluster and merging the two most similar clusters into a single cluster;

    selecting at least two of the hierarchical clusters as groups; and

    creating, by a policy engine, a network access policy for the plurality of hosts in the network based on the flow information, wherein the act of creating a network access policy for the plurality of hosts is performed automatically, and wherein the network access policy is defined at a group level.

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