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System using stream specification and action specification stored in policy cache to process the flow of data packets by appropriate action processor

  • US 7,006,502 B2
  • Filed: 02/07/2003
  • Issued: 02/28/2006
  • Est. Priority Date: 12/17/1998
  • Status: Expired due to Term
First Claim
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1. A method for processing a flow of packets of a stream over a computer network, the method comprising the steps of:

  • providing initial packets from the flow of packets of the stream to a flow classifier for analysis of the initial packets to aid in determining an action specification;

    determining said action specification for the flow of packets of the stream;

    providing the action specification to a policy cache, said action specification detailing the specific further processing of the packets of the stream;

    directing the flow of packets of the stream to a stream classifier;

    selecting a stream specification from the policy cache for the flow of packets of the stream; and

    activating an action processor according to the stream specification to process the flow of packets of the stream.

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