IETF Logo Mail Archive

Re: [aqm] think once to mark, think twice to drop: draft-ietf-aqm-ecn-benefits-02

Vishal Misra <misra@cs.columbia.edu> Fri, 27 March 2015 20:21 UTC

Return-Path: <vm2020@columbia.edu>
X-Original-To: aqm@ietfa.amsl.com
Delivered-To: aqm@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 2E39E1A9075 for <aqm@ietfa.amsl.com>; Fri, 27 Mar 2015 13:21:15 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -4.21
X-Spam-Level:
X-Spam-Status: No, score=-4.21 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01] autolearn=ham
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 uh8qbKYdFOqH for <aqm@ietfa.amsl.com>; Fri, 27 Mar 2015 13:21:13 -0700 (PDT)
Received: from millet.cc.columbia.edu (millet.cc.columbia.edu [128.59.72.250]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 98EE41A86E2 for <aqm@ietf.org>; Fri, 27 Mar 2015 13:21:13 -0700 (PDT)
Received: from hazelnut (hazelnut.cc.columbia.edu [128.59.213.250]) by millet.cc.columbia.edu (8.13.8/8.13.8) with ESMTP id t2RKI9na008343 for <aqm@ietf.org>; Fri, 27 Mar 2015 16:21:12 -0400
Received: from hazelnut (localhost.localdomain [127.0.0.1]) by hazelnut (Postfix) with ESMTP id 7138E7E for <aqm@ietf.org>; Fri, 27 Mar 2015 16:21:12 -0400 (EDT)
Received: from tarap.cc.columbia.edu (tarap.cc.columbia.edu [128.59.29.7]) by hazelnut (Postfix) with ESMTP id C7F5F7E for <aqm@ietf.org>; Fri, 27 Mar 2015 16:21:11 -0400 (EDT)
Received: from mail-qc0-f171.google.com (mail-qc0-f171.google.com [209.85.216.171]) by tarap.cc.columbia.edu (8.14.4/8.14.3) with ESMTP id t2RKLBYg004454 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for <aqm@ietf.org>; Fri, 27 Mar 2015 16:21:11 -0400 (EDT)
Received: by qcay5 with SMTP id y5so26594251qca.1 for <aqm@ietf.org>; Fri, 27 Mar 2015 13:21:11 -0700 (PDT)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:content-type:mime-version:subject:from :in-reply-to:date:cc:message-id:references:to; bh=pi17bywDfF3bxhHgVw4SLEORM95BNCRY9EmbX70WVDw=; b=BMZpkqnP8KDMgabAxoWjqA8ojnboLNy9a8ZiuFTDIxO16g1vrxOwBwjMB+xHgWtRQO Kpepao1IEWMwMAH10Fsker/Z9dKpfNsqw+u2ItpT/0Ek9okYO4lCHQ8rQtZuuAd1FscP +ASe7MRAC11jAWM+Wp/5JXpw7DZWS0xeU3p4jXziRvezoQ9GS4796qFrCaTZEa1LdDCw DZ7mF6+xFB5t+hPR5k6pHI4iBcLFUCuABdCndX4hJK9wLtIK4sy9hVxOPoNZpW+/QN3I p3NlOopVfz22tI7lAOL0EOJuE9lXvsY8uBPZVAL5+oe1vQLdfLS2KScAiSX1kv/Uer33 S5mA==
X-Gm-Message-State: ALoCoQlMaZlq583Zp3JJJRBRVDfpXvb0vHV7s4UrNcJ7r3TA9QwBmhpdDag45HP5V5eWL/rV0mrKLopoobiuj7XOoevGjSs19R6lSFgVR7iXFKnH0xzWIa4FHoJO4WpB+3E18z4Vq1va
X-Received: by 10.55.23.165 with SMTP id 37mr43158435qkx.107.1427487671297; Fri, 27 Mar 2015 13:21:11 -0700 (PDT)
X-Received: by 10.55.23.165 with SMTP id 37mr43158407qkx.107.1427487671132; Fri, 27 Mar 2015 13:21:11 -0700 (PDT)
Received: from ?IPv6:2001:18d8:ffff:16:ac69:59c1:9622:8102? ([2001:18d8:ffff:16:ac69:59c1:9622:8102]) by mx.google.com with ESMTPSA id n20sm2190672qgd.48.2015.03.27.13.21.09 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Fri, 27 Mar 2015 13:21:10 -0700 (PDT)
Content-Type: multipart/alternative; boundary="Apple-Mail=_39367076-CBBF-4BEC-B244-EF1B41C3A80C"
Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2090\))
From: Vishal Misra <misra@cs.columbia.edu>
In-Reply-To: <alpine.DEB.2.02.1503271257230.19390@nftneq.ynat.uz>
Date: Fri, 27 Mar 2015 16:21:09 -0400
Message-Id: <E7CEDB70-62A4-4DB4-80FD-6F1B56195090@cs.columbia.edu>
References: <23AFEFE3-4D93-4DD9-A22B-952C63DB9FE3@cisco.com> <BF6B00CC65FD2D45A326E74492B2C19FB75BAA82@FR711WXCHMBA05.zeu.alcatel-lucent.com> <72EE366B-05E6-454C-9E53-5054E6F9E3E3@ifi.uio.no> <55146DB9.7050501@rogers.com> <08C34E4A-DFB7-4816-92AE-2ED161799488@ifi.uio.no> <BF6B00CC65FD2D45A326E74492B2C19FB75BAFA0@FR711WXCHMBA05.zeu.alcatel-lucent.com> <alpine.DEB.2.02.1503271024550.2416@nftneq.ynat.uz> <5d58d2e21400449280173aa63069bf7a@hioexcmbx05-prd.hq.netapp.com> <20150327183659.GI39886@verdi> <72C12F6B-9DDE-4483-81F2-2D9A0F2D3A48@cs.columbia.edu> <alpine.DEB.2.02.1503271211200.19390@nftneq.ynat.uz> <D13AFCE7.46BC%kk@cs.ucr.edu> <alpine.DEB.2.02.1503271257230.19390@nftneq.ynat.uz>
To: David Lang <david@lang.hm>
X-Mailer: Apple Mail (2.2090)
X-No-Spam-Score: Local
X-Scanned-By: MIMEDefang 2.68 on 128.59.29.7
Archived-At: <http://mailarchive.ietf.org/arch/msg/aqm/pwlCv0jKBjL3Qh71ikvy3FApKwE>
Cc: "Scheffenegger, Richard" <rs@netapp.com>, KK <kk@cs.ucr.edu>, John Leslie <john@jlc.net>, aqm@ietf.org
Subject: Re: [aqm] think once to mark, think twice to drop: draft-ietf-aqm-ecn-benefits-02
X-BeenThere: aqm@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: "Discussion list for active queue management and flow isolation." <aqm.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/aqm>, <mailto:aqm-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/aqm/>
List-Post: <mailto:aqm@ietf.org>
List-Help: <mailto:aqm-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/aqm>, <mailto:aqm-request@ietf.org?subject=subscribe>
X-List-Received-Date: Fri, 27 Mar 2015 20:21:15 -0000

I don’t think anyone is making that argument. ECN without AQM is completely pointless (what decides the marking rate?). AQM is good but it really kicks in when coupled with ECN. 

-Vishal
--
http://www.cs.columbia.edu/~misra/


> On Mar 27, 2015, at 4:17 PM, David Lang <david@lang.hm> wrote:
> 
> 
> This is a better vs best argument. Nobody disputes that something like fq_codel/pie/cake/whatever + ECN would be better than just fq_codel/pie/cake/whatever, but the way this is being worded make it sound that static buffer sizes + tail-drop + ECN is better than fq_codel/pie/cake/whaever because these other queueing algorithms will cause packet loss.

v2.23.0 | Report a Bug | By Email