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System and method for analyzing and tuning a communications network
| Details |
Inventors: Klassen, Fredrick K. P.; Silverman, Robert M.;
Assignee: International Business Machines Corporation (Armonk, NY)
Primary Examiner: Nguyen; Steven H. D
Assistant Examiner: Duong; Duc
Attorney, Agent or Firm: Beckstrand; Shelley M
A communications network is evaluated by selectively sending and receiving a plurality of network evaluation signals through the network. Responsive to these evaluation signals, selective network evaluation parameters are determined and stored. Responsive to these parameters, the response time and throughput characteristics of the network are determined by means of algebraic and queuing theory derivations. Network response time analysis determines the apparent bandwidth, utilization, internal message size, queue factor, and device latency. Throughput analysis defines, calculates, and uses hop count, duplex, throughput and multi-server factors. Service level and capacity planning provides comprehensive "what-if" network planning facilities, including calculation of the change in network traffic before network response time service level is compromised; calculation of the additional file load capacity of the network; and determination of tuning recommendations for recommended window size for file transfer to fill remaining capacity. |
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DETAILED DESCRIPTION In accordance with the invention, a system and method is provided for evaluating a communications network.
A plurality of network evaluation signals, or probative test packets, are selectively sent and received through the network.
Responsive to these evaluation signals, selective network evaluation parameters are determined and stored.
Queuing theory analysis, responsive to these parameters, determines the response time and throughput characteristics, including capacity, utilization and performance, of the network.
Other features and advantages of this invention will become apparent from the following detailed description of the presently preferred embodiment of the invention, taken in conjunction with the accompanying drawings.
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