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SYSTEM AND METHOD FOR ESTIMATION OF ROUND TRIP TIMES WITHIN A TCP BASED DATA NETWORK

  • US 20100238828A1
  • Filed: 03/16/2010
  • Published: 09/23/2010
  • Est. Priority Date: 03/23/2009
  • Status: Active Grant
First Claim
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1. A monitoring system for monitoring the round trip time of data packets travelling between a first node and second node within a packet based network, the system comprising:

  • a. A first module configured to interrogate traffic originating from the first node and to extract and store sequence numbers from individual packet headers;

    b. A timer module configured to initiate a timer on extraction of sequence numbers; and

    c. A second module configured to interrogate acknowledgements from the second node relating to the traffic sent, and to stop the timer on identification of an acknowledgment relating to a stored sequence number so as to provide an estimate of the round trip time of packets travelling between the first and second nodes.

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