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System and method for analyzing and tuning a communications network

  • US 6,711,137 B1
  • Filed: 03/12/1999
  • Issued: 03/23/2004
  • Est. Priority Date: 03/12/1999
  • Status: Expired due to Term
First Claim
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1. A program storage device readable by a machine, tangibly embodying a program of instructions executable by a machine to perform a method for network measurement and planning, said method comprising:

  • sending probative test packets across a live communications network to derive network evaluation parameters including apparent bandwidth and current available bandwidth;

    determining capacity, utilization and performance of said network as a function of said network evaluation parameters and of queue delay selectively determined with respect to single or multiple links apparent queue factor;

    measuring responsive time including response time components of serialization or deserialization time, device latency, propagation delay and queue delay;

    determining apparent bandwidth as a difference between short ping time and long ping time for discrete pings;

    determining for a given message length serialization or deserialization time as a function of apparent bandwidth;

    determining device latency as a function of ping times;

    determining propagation delay as a function of network quality factor;

    distinguishing between device latency and propagation delay latency as a function of said network quality factor; and

    determining queue delay.

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