A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : More Accurate ECN Feedback in TCP
Author(s) : Mirja Kuehlewind
Richard Scheffenegger
Filename : draft-kuehlewind-tcpm-accurate-ecn-02.txt
Pages : 14
Date : 2013-06-20
Abstract:
Explicit Congestion Notification (ECN) is an IP/TCP mechanism where
network nodes can mark IP packets instead of dropping them to
indicate congestion to the end-points. ECN-capable receivers will
feedback this information to the sender. ECN is specified for TCP in
such a way that only one feedback signal can be transmitted per
Round-Trip Time (RTT). Recently, new TCP mechanisms like ConEx or
DCTCP need more accurate ECN feedback information in the case where
more than one marking is received in one RTT. This document
specifies a different scheme for the ECN feedback in the TCP header
to provide more than one feedback signal per RTT. Furthermore this
document specifies a re-use of the Urgent Pointer in the TCP header
if the URG flag is not set to increase the robustness of the proposed
ECN feedback scheme.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-kuehlewind-tcpm-accurate-ecn
There's also a htmlized version available at:
http://tools.ietf.org/html/draft-kuehlewind-tcpm-accurate-ecn-02
A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-kuehlewind-tcpm-accurate-ecn-02
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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