White Papers

Behavior of TCP-Like Elastic Traffic at a Buffered Bottleneck Router

Overview A major challenge in traffic modeling and performance analysis for the Transmission Control Protocol (TCP) stems from the fact that the incoming traffic is not independent of the congestion level in the network. This paper investigates a queueing model where the traffic essentially shows ON/OFF characteristics, i.e. the number of active TCP connections of finite (probabilistic) duration varies as described by a stochastic process. The essential behavior of TCP-like flow-control mechanisms is captured in the analytic model by the feature that the packet-rate of active connections can be throttled in order to avoid that the overall packet-stream exceeds the output-bandwidth of the bottleneck router. By appropriate adjustment of the connection duration, the number of packets in the connections remains unaffected.

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Publisher: Institute of Electrical and Electronics Engineers
File Format: PDF
Date Published: Dec 27, 2007
Format: White Papers
Topics: TCP - IP, Switching

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