Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2005-09-02
2009-10-06
Yao, Kwang B (Department: 2416)
Multiplex communications
Diagnostic testing
Determination of communication parameters
Reexamination Certificate
active
07599308
ABSTRACT:
A system for identifying chronic performance problems on data networks includes network monitoring devices that provide measurements of performance metrics such as latency, jitter, and throughput, and a processing system for analyzing measurement data to identify the onset of chronic performance problems. Network behavior is analyzed to develop a baseline performance level (e.g., computing a mean and variance of a baseline sample of performance metric measurements). An operating performance level is measured during operation of the network (e.g., computing a mean and variance of an operating sample of performance metric measurements). A chronic performance problem is identified if the operating performance level exceeds a performance threshold and a difference between the baseline performance level and the operating performance level is determined to be statistically significant. A t-test based on the baseline mean and variance and the operating mean and variance can be used to determine if this difference is significant.
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Laver Kent
Tucker Matthew A.
Edell Shapiro & Finnan LLC
Fluke Corporation
Skripnikov Alex
Yao Kwang B
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