Bandwidth Issues White Papers
Performance Evaluation of Westwood+ TCP Congestion Control
Overview Westwood+ TCP is a sender-side only modification of the classic Tahoe/Reno TCP that has been recently proposed to improve fairness and efficiency of TCP. The key idea of Westwood+ TCP is to perform an end-to-end estimate of the bandwidth available for a TCP connection by properly counting and filtering the stream of ACK packets. This estimate is used to adaptively decrease the congestion window and slow start threshold after a congestion episode. In this way Westwood+ TCP substitutes the classic multiplicative decrease paradigm with the adaptive decrease paradigm. This paper reports experimental results that have been obtained running Linux 2.2.20 implementations of Westwood+, Westwood and Reno TCP to ftp data over an emulated WAN and over Internet connections spanning continental and intercontinental distances.
| Publisher | Politecnico di Bari | File Format | |
|---|---|---|---|
| Date Published | April 2003 | ||
| Format | White Papers | ||
| Topics | |||
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