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Re: [Tsvwg] Issues with draft-blanton-dsack-use-02

Mark Allman <mallman@grc.nasa.gov> Thu, 14 August 2003 19:01 UTC

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To: tsvwg@ietf.org
Cc: Ethan Blanton <eblanton@cs.purdue.edu>
Cc: Reiner Ludwig <Reiner.Ludwig@ericsson.com>
From: Mark Allman <mallman@grc.nasa.gov>
Reply-To: mallman@grc.nasa.gov
Subject: Re: [Tsvwg] Issues with draft-blanton-dsack-use-02
In-Reply-To: <5.2.0.9.0.20030711101645.02f7cde8@mailhost.eed.ericsson.se>
Organization: BBN Technologies/NASA GRC
Song-of-the-Day: Get Over It
Date: Thu, 14 Aug 2003 14:59:46 -0400
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Folks-

Ethan and I just revised the i-d per the thread on tsvwg over the
last month.  The two major changes to the document are:

  * if the SACK scoreboard is empty when a DSACK rolls in then we
    say the TCP cannot revert its congestion control state because
    the presumption is that all the ACKs have been lost

  * if the TCP ertransmits something more than once then the TCP
    cannot revert the congestion control state because DSACKs can no
    longer resolve the retransmission ambiguity

We have sent the new version of the i-d to the archives and so it
will appear in the standard places in the next few days.  It is
available at: 

 http://roland.grc.nasa.gov/~mallman/papers/draft-ietf-tsvwg-dup-notify-01.txt

now.

We would appreciate comments on the new version.

Thanks,
allman


--
Mark Allman -- BBN/NASA GRC -- http://roland.grc.nasa.gov/~mallman/

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