Avoiding the TCP TIME_WAIT state at Busy Servers
draft-faber-time-wait-avoidance-00

Document Type Expired Internet-Draft (individual)
Authors Joseph Touch  , Ted Faber  , Wei Yue 
Last updated 1997-09-11
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at
https://www.ietf.org/archive/id/draft-faber-time-wait-avoidance-00.txt

Abstract

This document describes the problems associated with the accumulation of TCP TIME_WAIT states at a network server, such as a web server, and details two methods for avoiding that accumulation. Servers that have many TCP connections in TIME_WAIT state experience performance degradation, and can collapse. One solution is a TCP modification that causes clients to enter TIME_WAIT state rather than servers. The other is an HTTP modification that allows the client to close the transport connection, maintaining the TIME_WAIT state at the client. The goal of both approaches is ensure that TIME_WAIT states accumu- late at the less loaded endpoint. The document also presents initial performance data from reference implementations of these solutions, which suggest that the modifica- tions improve HTTP connection rates at the server by as much as 50%, and allow servers to operate at small transaction throughputs that they cannot sustain their default configuration.

Authors

Joseph Touch (touch@isi.edu)
Ted Faber (faber@isi.edu)
Wei Yue (wyue@isi.edu)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)