Bandwidth Issues White Papers
TCP Westwood: Congestion Control With Faster Recovery
Overview This paper proposes a new version of the TCP protocol, called TCP Westwood, which enhances the performance of TCP window congestion control by using as feedback the end-to-end measurement of the bandwidth available along a TCP connection. The available bandwidth is estimated at the TCP source by measuring and low-pass filtering the returning rate of acknowledgments. The estimated bandwidth is then used to properly set the congestion window and the slow start threshold after a congestion episode that is after a timeout or 3 duplicate acknowledgments. The rationale of this strategy is simple: TCP Westwood sets a slow start threshold and congestion windows which are consistent with the network capacity measured at the time congestion is experienced.
| Publisher | University of California, Los Angeles | File Format | |
|---|---|---|---|
| Date Published | November 2001 | Downloads | 1 |
| Format | White Papers | ||
| Topics | |||
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