[tcpm] posted draft-ietf-tcpm-prr-rfc6937bis-13

Neal Cardwell <ncardwell@google.com> Sat, 09 November 2024 21:12 UTC

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From: Neal Cardwell <ncardwell@google.com>
Date: Sat, 09 Nov 2024 16:11:52 -0500
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To: tcpm <tcpm@ietf.org>
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Subject: [tcpm] posted draft-ietf-tcpm-prr-rfc6937bis-13
Archived-At: <https://mailarchive.ietf.org/arch/msg/tcpm/gMDV3RpPQMGKfgv0e8r2zYbT_0E>

Hi TCPM-ers,

We have posted rev 13 of rfc6937bis (see links below). We made a pass
to try to make sure the draft addresses "open issue 1" and "open issue
2" discussed this past week at IETF 121, in the meeting and the slides
( slides:  https://datatracker.ietf.org/meeting/121/materials/slides-121-tcpm-prr-00
).

Here's how we handled those:

(1) open issue 1: When ssthresh is reduced and PRR is triggered. It
turns out this was already integrated back in July. See the changes to
Sec 6, "Algorithm" in revision 9; here's the diff:
  https://author-tools.ietf.org/iddiff?url1=draft-ietf-tcpm-prr-rfc6937bis-08&url2=draft-ietf-tcpm-prr-rfc6937bis-09&difftype=--html

(2) open issue 2: Using "inflight" rather than "pipe": that's the
primary change in rev 13; here's the diff:
  https://author-tools.ietf.org/iddiff?url2=draft-ietf-tcpm-prr-rfc6937bis-13

As always, feedback is welcome!

best regards,
neal


---------- Forwarded message ---------
From: <internet-drafts@ietf.org>
Date: Sat, Nov 9, 2024 at 4:02 PM
Subject: New Version Notification for draft-ietf-tcpm-prr-rfc6937bis-13.txt
To: Matt Mathis <ietf@mattmathis.net>, Nandita Dukkipati
<nanditad@google.com>, Neal Cardwell <ncardwell@google.com>, Yuchung
Cheng <ycheng@google.com>


A new version of Internet-Draft draft-ietf-tcpm-prr-rfc6937bis-13.txt has been
successfully submitted by Neal Cardwell and posted to the
IETF repository.

Name:     draft-ietf-tcpm-prr-rfc6937bis
Revision: 13
Title:    Proportional Rate Reduction for TCP
Date:     2024-11-09
Group:    tcpm
Pages:    21
URL:      https://www.ietf.org/archive/id/draft-ietf-tcpm-prr-rfc6937bis-13.txt
Status:   https://datatracker.ietf.org/doc/draft-ietf-tcpm-prr-rfc6937bis/
HTML:     https://www.ietf.org/archive/id/draft-ietf-tcpm-prr-rfc6937bis-13.html
HTMLized: https://datatracker.ietf.org/doc/html/draft-ietf-tcpm-prr-rfc6937bis
Diff:     https://author-tools.ietf.org/iddiff?url2=draft-ietf-tcpm-prr-rfc6937bis-13

Abstract:

   This document updates the experimental Proportional Rate Reduction
   (PRR) algorithm, described RFC 6937, to standards track.  PRR
   provides logic to regulate the amount of data sent by TCP or other
   transport protocols during fast recovery.  PRR accurately regulates
   the actual flight size through recovery such that at the end of
   recovery it will be as close as possible to the slow start threshold
   (ssthresh), as determined by the congestion control algorithm.



The IETF Secretariat

[tcpm] posted draft-ietf-tcpm-prr-rfc6937bis-13 Neal Cardwell
[tcpm] Re: posted draft-ietf-tcpm-prr-rfc6937bis-… Yoshifumi Nishida