Performance of TCP with multiple Priority Classes

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Vranken, R. and Mei van der, R.D. and Kooij, R.E. and Berg van den, J.L. (2002) Performance of TCP with multiple Priority Classes. In: International Seminar on Telecommunication Networks and Teletraffic Theory, 29 Jan - 1 Feb 2002, St. Petersburg, Russia.

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Abstract:We consider the dimensioning problem for Internet access links carrying TCP traffic with two priority classes. To this end, we study the behaviour of TCP at the flow level described by a multiple-server Processor Sharing (PS) queueing model with two customer classes, where the customers represent flows generated by downloading Internet objects; the sojourn times represent the object transfer times. We present closed-form expressions for the mean sojourn times for high-priority customers and approximate expressions for the mean sojourn times of low-priority customers. The accuracy of the model is demonstrated by comparing results based on the PS model with "real" TCP simulation results obtained by the well-known Network Simulator. The experimental results demonstrate that the model-based results are highly accurate when the mean object size is at least 10 IP-packets, and the loss rate is negligible.
Item Type:Conference or Workshop Item
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/72350
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