I-D Action:draft-ietf-tcpm-sack-recovery-entry-00.txt
Internet-Drafts@ietf.org Mon, 19 October 2009 19:30 UTC
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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 : Using TCP Selective Acknowledgement (SACK) Information to Determine Duplicate Acknowledgements for Loss Recovery Initiation Author(s) : I. Jarvinen, M. Kojo Filename : draft-ietf-tcpm-sack-recovery-entry-00.txt Pages : 17 Date : 2009-10-19 This document describes a TCP sender algorithm to trigger loss recovery based on the TCP Selective Acknowledgement (SACK) information gathered on a SACK scoreboard instead of simply counting the number of arriving duplicate acknowledgements (ACKs) in the traditional way. The given algorithm is more robust to ACK losses, ACK reordering, missed duplicate acknowledgements due to delayed acknowledgements, and extra duplicate acknowledgements due to duplicated segments and out-of-window segments. The algorithm allows not only a timely initiation of TCP loss recovery but also reduces false fast retransmits. It has a low implementation cost on top of the SACK scoreboard defined in RFC 3517. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-tcpm-sack-recovery-entry-00.txt Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/ Below is the data which will enable a MIME compliant mail reader implementation to automatically retrieve the ASCII version of the Internet-Draft.
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