IETF Logo Mail Archive

[multipathtcp] Coupled Slow Start for MPTCP, presentation in ICCRG up next

Michael Welzl <michawe@ifi.uio.no> Tue, 15 November 2016 06:23 UTC

Return-Path: <michawe@ifi.uio.no>
X-Original-To: multipathtcp@ietfa.amsl.com
Delivered-To: multipathtcp@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BFC211295C2 for <multipathtcp@ietfa.amsl.com>; Mon, 14 Nov 2016 22:23:34 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -3.396
X-Spam-Level:
X-Spam-Status: No, score=-3.396 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RP_MATCHES_RCVD=-1.497] autolearn=ham autolearn_force=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id SO1EXMJDVUYp for <multipathtcp@ietfa.amsl.com>; Mon, 14 Nov 2016 22:23:31 -0800 (PST)
Received: from mail-out02.uio.no (mail-out02.uio.no [IPv6:2001:700:100:8210::71]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 5E5DB1294C6 for <multipathtcp@ietf.org>; Mon, 14 Nov 2016 22:23:31 -0800 (PST)
Received: from mail-mx1.uio.no ([129.240.10.29]) by mail-out02.uio.no with esmtp (Exim 4.82_1-5b7a7c0-XX) (envelope-from <michawe@ifi.uio.no>) id 1c6X9V-000GWZ-95 for multipathtcp@ietf.org; Tue, 15 Nov 2016 07:23:29 +0100
Received: from dhcp-8409.meeting.ietf.org ([31.133.132.9]) by mail-mx1.uio.no with esmtpsa (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) user michawe (Exim 4.80) (envelope-from <michawe@ifi.uio.no>) id 1c6X9T-00015U-6r for multipathtcp@ietf.org; Tue, 15 Nov 2016 07:23:29 +0100
From: Michael Welzl <michawe@ifi.uio.no>
Content-Type: multipart/alternative; boundary="Apple-Mail=_2533D07C-7B59-437D-9576-51A184176665"
Mime-Version: 1.0 (Mac OS X Mail 10.1 \(3251\))
Message-Id: <84CBD443-4078-4FB4-ADAA-A40C3A7A8880@ifi.uio.no>
References: <6E870E2B-9CB0-4165-9395-F9C98B1B3C86@ifi.uio.no>
To: multipathtcp@ietf.org
Date: Tue, 15 Nov 2016 15:23:23 +0900
X-Mailer: Apple Mail (2.3251)
X-UiO-SPF-Received:
X-UiO-Ratelimit-Test: rcpts/h 1 msgs/h 1 sum rcpts/h 7 sum msgs/h 2 total rcpts 48782 max rcpts/h 54 ratelimit 0
X-UiO-Spam-info: not spam, SpamAssassin (score=-5.0, required=5.0, autolearn=disabled, HTML_MESSAGE=0.001, UIO_MAIL_IS_INTERNAL=-5, uiobl=NO, uiouri=NO)
X-UiO-Scanned: 6C4E17E8594312DF281434F599FCAF24444116E1
X-UiO-SPAM-Test: remote_host: 31.133.132.9 spam_score: -49 maxlevel 80 minaction 2 bait 0 mail/h: 1 total 16 max/h 6 blacklist 0 greylist 0 ratelimit 0
Archived-At: <https://mailarchive.ietf.org/arch/msg/multipathtcp/02lpQYz1JxK6f6MOv6-LA1Rkrh8>
Subject: [multipathtcp] Coupled Slow Start for MPTCP, presentation in ICCRG up next
X-BeenThere: multipathtcp@ietf.org
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: Multi-path extensions for TCP <multipathtcp.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/multipathtcp>, <mailto:multipathtcp-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/multipathtcp/>
List-Post: <mailto:multipathtcp@ietf.org>
List-Help: <mailto:multipathtcp-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/multipathtcp>, <mailto:multipathtcp-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 15 Nov 2016 06:23:35 -0000

Hi,

In the next session, this draft will be presented / discussed in ICCRG.
It doesn’t (currently? forever?) fit the MPTCP charter, but it’s about MPTCP, so MPTCP folks may want to see it.

Cheers,
Michael


> Begin forwarded message:
> 
> From: Michael Welzl <michawe@ifi.uio.no>
> Subject: [iccrg] LISA - draft-barik-mptcp-lisa
> Date: July 22, 2016 at 11:38:12 PM GMT+9
> To: multipathtcp@ietf.org, iccrg@irtf.org
> Resent-From: <michawe@ifi.uio.no>
> 
> (chair hat on)
> 
> [ This email goes to the MPTCP and ICCRG lists as an announcement. When answering, please discuss this in the ICCRG list. ]
> 
> 
> Dear all in MPTCP & ICCRG,
> 
> Last Wednesday, in MPTCP, Runa Barik presented draft-barik-mptcp-lisa (LISA - a Linked Slow-Start Algorithm). For more documentation & code, see:
> http://heim.ifi.uio.no/runabk/lisa/
> LISA was first presented by Runa in Yokohama, with feedback that was addressed (with results shown in this presentation).
> 
> (chair hat off, co-author hat on)
> 
> LISA is a simple algorithm that prevents a large burst of packets going out during in MPTCP in slow start in one particular round-trip (when all but the first subflows join). E.g. with 4 subflows, MPTCP starts out sending using IW10 on the first subflow, and then after 3 RTTs, 3 more subflows start at the same time, adding 3 * IW10 on top of the ongoing slow start. This short but massive burst is consistently bad when we share a bottleneck, and often LISA also makes things better when not sharing a bottleneck.
> 
> (co-author hat off, chair hat on)
> 
> LISA doesn’t fit the current charter of MPTCP, so we decided to get this reviewed and discussed in ICCRG, and possibly (if the updated charter doesn’t fit congestion control work) published via ICCRG too.
> 
> (both hats on)
> 
> We would greatly appreciate if people could look at this work and provide comments on the draft soon.
> 
> Thank you all in advance!
> 
> Cheers,
> Michael
> 
> _______________________________________________
> iccrg mailing list
> iccrg@irtf.org
> https://www.irtf.org/mailman/listinfo/iccrg

v2.23.0 | Report a Bug | By Email