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Estimating flow rate from sampled packet streams for detection of performance degradation at TCP flow level

机译:从采样的数据包流中估算流量,以检测TCP流量级别的性能下降

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摘要

A method of estimating TCP flow-rates of sampled flows through packet sampling is described in this paper. We use sequence numbers of sampled packets, which make it possible to improve markedly the accuracy of estimating the flow rates. Using an analytical model, we investigate how to set parameters such as packet sampling probability used in this method of estimation. As a remarkable result, we show that the estimation accuracy improves as the sampling probability decreases. Using measured data, we also show that this method gives accurate estimations. We also show that this estimation method enables us to detect performance degradation at the TCP flow level.
机译:本文介绍了一种通过数据包采样估算TCP采样率的方法。我们使用采样数据包的序列号,这可以显着提高估计流量的准确性。使用分析模型,我们研究如何设置参数,例如在此估算方法中使用的数据包采样概率。作为一个显着的结果,我们表明,随着采样概率的降低,估计精度提高。使用实测数据,我们还表明该方法可以提供准确的估计。我们还表明,这种估计方法使我们能够检测TCP流级别的性能下降。

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