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TCP Extensions for High Performance
draft-ietf-tcpm-1323bis-21

Approval Announcement

Draft of message to be sent after approval:

From: The IESG <iesg-secretary@ietf.org>
To: IETF-Announce <ietf-announce@ietf.org>
Cc: RFC Editor <rfc-editor@rfc-editor.org>,
    tcpm mailing list <tcpm@ietf.org>,
    tcpm chair <tcpm-chairs@tools.ietf.org>
Subject: Protocol Action: 'TCP Extensions for High Performance' to Proposed Standard (draft-ietf-tcpm-1323bis-21.txt)

The IESG has approved the following document:
- 'TCP Extensions for High Performance'
  (draft-ietf-tcpm-1323bis-21.txt) as Proposed Standard

This document is the product of the TCP Maintenance and Minor Extensions
Working Group.

The IESG contact persons are Martin Stiemerling and Spencer Dawkins.

A URL of this Internet Draft is:
http://datatracker.ietf.org/doc/draft-ietf-tcpm-1323bis/




Technical Summary

	This document replaces RFC 1323, making minor fixes and
	clarifications to the original document. The document
	specifies three performance enhancing extensions to TCP, using
	two TCP options. The first is window scale option, that allows
	representation of receive window sizes larger than 2^16 bytes
	originally allowed by the 16-bit window field. The second
	option is TCP timestamps option that allows round-trip time
	measurement on each TCP segment, and third is an algorithm to
	detect and reject old duplicate segments that happen to match
	the current TCP window (Protect Against Wrapped Sequence
	numbers).


Working Group Summary

	This document has been a chartered TCPM working group item
	since year 2008. It has not been under significant
	controversy, but the progress has been slow because of earlier
	lack of WG (and authoring) cycles. Since adding a new
	co-editor, the progress on the draft became faster in the
	working group.

Document Quality

	The predecessor of this document, RFC 1323, was published in
	1992, and is deployed in most TCP implementations. This
	document includes fixes and clarifications based on the gained
	deployment experience. The recent versions of the document
	have been reviewed and discussed by multiple working group
	participants.


Personnel

	Document Shepherd is Pasi Sarolahti.
	Reponsible Area Director is Martin Stiemerling.