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Re: [tcpm] [Fwd: Confirmation for Auto-Post of I-D draft-ietf-tcpm-newcwv]

Yuchung Cheng <ycheng@google.com> Tue, 17 December 2013 03:55 UTC

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From: Yuchung Cheng <ycheng@google.com>
Date: Mon, 16 Dec 2013 19:55:10 -0800
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To: Gorry Fairhurst <gorry@erg.abdn.ac.uk>
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Cc: "tcpm@ietf.org Extensions" <tcpm@ietf.org>
Subject: Re: [tcpm] [Fwd: Confirmation for Auto-Post of I-D draft-ietf-tcpm-newcwv]
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On Mon, Dec 16, 2013 at 1:28 PM,  <gorry@erg.abdn.ac.uk> wrote:
>
> We've submitted a revised ID for new-cwv.
>
> There are 2 main updates:
>
> - The draft now firmly recommends the use of pacing. We will provide
> performance data on pacing for the next IETF.
>
> - The draft has a small amendment to the algorithm to ensure that the NVP
> does not inhibit cwnd growth when a sender fully consumes the cwnd. There
> was previously a corner case in the measurement of pipeACK when a flow
> started or resumed that could result making newCWV more conservative than
> standard TCP (e.g. for a bulk flow). We think the correction is within the
> original spirit of new CWV.
>
> We'd welcome feedback on these or any other aspects.
I appreciate the new section on burst mitigation but why standard track?

The change has pro-found impact on congestion control as it changes
how cwnd increases per ACK and after idle. There are a lot to
experiment before we know this works well in real networks.

>
> Best wishes,
>
> the new CWV authors
>
> --------------------------------------------------------------------------
>
>
> Hi,
>
> The IETF datatracker draft submission service has received your draft
> draft-ietf-tcpm-newcwv-04, and requires a
> confirmation step in order to be able to complete the posting of
> the draft.
>
> Please follow this link to the page where you can confirm the posting:
> Confirmation URL:
> http://datatracker.ietf.org/submit/status/56402/confirm/c575579feb585d58d82af80a319918630e8d0529/
>
>
> Best regards,
>
>         The IETF Secretariat
>         through the draft submission service
>
>
>
> _______________________________________________
> tcpm mailing list
> tcpm@ietf.org
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