I-D ACTION:draft-ietf-tcpm-frto-01.txt

A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the TCP Maintenance and Minor Extensions Working Group of the IETF.

	Title		: F-RTO: An Algorithm for Detecting Spurious Retransmission
			  Timeouts with TCP and SCTP
	Author(s)	: P. Sarolahti, et al.
	Filename	: draft-ietf-tcpm-frto-01.txt
	Pages		: 23
	Date		: 2004-7-14

Spurious retransmission timeouts cause suboptimal TCP performance,
   because they often result in unnecessary retransmission of the last
   window of data. This document describes the F-RTO detection algorithm
   for detecting spurious TCP retransmission timeouts. F-RTO is a TCP
   sender only algorithm that does not require any TCP options to
   operate. After retransmitting the first unacknowledged segment
   triggered by a timeout, the F-RTO algorithm at a TCP sender monitors
   the incoming acknowledgments to determine whether the timeout was
   spurious and to decide whether to send new segments or retransmit
   unacknowledged segments. The algorithm effectively helps to avoid
   additional unnecessary retransmissions and thereby improves TCP
   performance in case of a spurious timeout. The F-RTO algorithm can
   also be applied to SCTP.

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