Re: I-D Action: draft-ietf-quic-ack-frequency-01.txt

Ian Swett <ianswett@google.com> Tue, 26 October 2021 16:16 UTC

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From: Ian Swett <ianswett@google.com>
Date: Tue, 26 Oct 2021 12:16:31 -0400
Message-ID: <CAKcm_gPWbQrHAcKH+dtMg4qqfgk0Gb9_MS6UOgXNEVGWA5eK9w@mail.gmail.com>
Subject: Re: I-D Action: draft-ietf-quic-ack-frequency-01.txt
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This new draft fixes all but 1 design issue.

The remaining issue is #96
<https://github.com/quicwg/ack-frequency/issues/96> which has an open PR
#100 <https://github.com/quicwg/ack-frequency/pull/100> and was raised by
Kazuho.  The issue is that packet threshold loss detection may not kick in
quickly or even at all if the 'Ack-Eliciting Threshold' is larger than 2.
The proposed fix is a design which sends an immediate ACK upon receiving an
out-of-order packet(as it does today) and then subsequently sends an
immediate ACK when it can trigger packet threshold loss detection.

Ian


On Mon, Oct 25, 2021 at 1:56 PM <internet-drafts@ietf.org> wrote:

>
> A New Internet-Draft is available from the on-line Internet-Drafts
> directories.
> This draft is a work item of the QUIC WG of the IETF.
>
>         Title           : QUIC Acknowledgement Frequency
>         Authors         : Jana Iyengar
>                           Ian Swett
>         Filename        : draft-ietf-quic-ack-frequency-01.txt
>         Pages           : 12
>         Date            : 2021-10-25
>
> Abstract:
>    This document describes a QUIC extension for an endpoint to control
>    its peer's delaying of acknowledgements.
>
> Note to Readers
>
>    Discussion of this draft takes place on the QUIC working group
>    mailing list (quic@ietf.org), which is archived at
>    https://mailarchive.ietf.org/arch/search/?email_list=quic.  Source
>    code and issues list for this draft can be found at
>    https://github.com/quicwg/ack-frequency.
>
>    Working Group information can be found at https://github.com/quicwg.
>
>
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-quic-ack-frequency/
>
> There is also an HTML version available at:
> https://www.ietf.org/archive/id/draft-ietf-quic-ack-frequency-01.html
>
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-quic-ack-frequency-01
>
>
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
>
>
>