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Systems and methods for processing packets

  • US 7,215,637 B1
  • Filed: 12/14/2001
  • Issued: 05/08/2007
  • Est. Priority Date: 04/17/2000
  • Status: Expired due to Term
First Claim
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1. A processing device, comprising:

  • an input interface to receive data units containing header information of respective packets;

    a first module including a user-configured filter rule to perform packet filtering based on the received data units, the first module to mark a packet for sampling by setting a bit in a packet notification when the packet matches the filter rule; and

    a second module to perform traffic analysis based on the received data units, the second module to generate a random number and sample the marked packet when the random number is less than a predetermined threshold.

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