Re: [tcpm] 转发: New Version Notification for draft-you-tcpm-configuring-tcp-initial-window-00.txt

Hi J. Touch,

            The work in http://tools.ietf.org/html/draft-touch-tcpm-automatic-iw-03, proposes an an algorithm for
automating IW-size of TCP connections, based on the statistics of IW-losses of previous connections. It updates the IW-size based on the number of losses observed for the IW segments in the previous  say 1000 connections, such that the IW-size is increased if the fraction of losses is below a threshold, and decreased otherwise. The problem is, it sets a single IW-size for a large number of consecutive connections if these connections observe same number previous IW losses. I think the variation in IW for flows is very small, which means still the concept of a single constant IW for many flows. 

Regards,
- Runa Barik

________________________________________
From: tcpm <tcpm-bounces@ietf.org> on behalf of Joe Touch <touch@isi.edu>
Sent: Monday, October 20, 2014 8:48 PM
To: Youjianjie; tcpm@ietf.org
Subject: Re: [tcpm] 转发: New Version Notification for draft-you-tcpm-configuring-tcp-initial-window-00.txt

There has been a proposal to automate the IW which was described here:

http://tools.ietf.org/html/draft-touch-tcpm-automatic-iw-03

An API might interact with that mechanism, e.g., changing parameters.

Joe

On 10/19/2014 11:32 PM, Youjianjie wrote:
> Hi all,
>
> This document discusses a method to configure TCP's initial congestion window by a new API.
> Your questions and comments are appreciated.
>
> Best Regards,
> Jianjie
>
> -----邮件原件-----
> 发件人: internet-drafts@ietf.org [mailto:internet-drafts@ietf.org]
> 发送时间: 2014年10月20日 14:26
> 收件人: Youjianjie; Huangyihong (Rachel); Huangyihong (Rachel); Youjianjie
> 主题: New Version Notification for draft-you-tcpm-configuring-tcp-initial-window-00.txt
>
>
> A new version of I-D, draft-you-tcpm-configuring-tcp-initial-window-00.txt
> has been successfully submitted by Jianjie You and posted to the IETF repository.
>
> Name:         draft-you-tcpm-configuring-tcp-initial-window
> Revision:     00
> Title:                Configuring TCP's Initial Window
> Document date:        2014-10-19
> Group:                Individual Submission
> Pages:                8
> URL:            http://www.ietf.org/internet-drafts/draft-you-tcpm-configuring-tcp-initial-window-00.txt
> Status:         https://datatracker.ietf.org/doc/draft-you-tcpm-configuring-tcp-initial-window/
> Htmlized:       http://tools.ietf.org/html/draft-you-tcpm-configuring-tcp-initial-window-00
>
>
> Abstract:
>    This document discusses that TCP's initial congestion window is not a
>    constant in different use cases.  It proposes a flexible method to
>    configure the initial window in order to keep up with the current
>    network state.
>
>
>
>
>
> Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org.
>
> The IETF Secretariat
>
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>

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