Re: [tsvwg] [Ecn-sane] per-flow scheduling

Jonathan Morton <chromatix99@gmail.com> Sat, 27 July 2019 19:42 UTC

Return-Path: <chromatix99@gmail.com>
X-Original-To: tsvwg@ietfa.amsl.com
Delivered-To: tsvwg@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id DC27612003F for <tsvwg@ietfa.amsl.com>; Sat, 27 Jul 2019 12:42:26 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.748
X-Spam-Level:
X-Spam-Status: No, score=-1.748 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=no autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com
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 6x8-2JYWyNyK for <tsvwg@ietfa.amsl.com>; Sat, 27 Jul 2019 12:42:26 -0700 (PDT)
Received: from mail-wm1-x330.google.com (mail-wm1-x330.google.com [IPv6:2a00:1450:4864:20::330]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id D8855120018 for <tsvwg@ietf.org>; Sat, 27 Jul 2019 12:42:25 -0700 (PDT)
Received: by mail-wm1-x330.google.com with SMTP id a15so50561247wmj.5 for <tsvwg@ietf.org>; Sat, 27 Jul 2019 12:42:25 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=kJWMXxR4ZhrFXGE0yE40CmzVb/3YbseUq3j7wnyHT4M=; b=A+5rSJNm8KdpqkXop0CJgt51+q0klWT7MmhwzOImDygk/cOVZd00CUenax5/vUPabd tQJEKjvwXgirDXLLHGt51s+kOY1rZRre8kik9VdsDEDGzj3ZOrfV7dH1TOPBI7re7x35 hq/+USrdln35voz8zGJTjTXVEumxbA9YYxeGFSvVq7FnvaOq1QTjv1mYTZBKCFLEUw4j pJaT6QYgAAJSAtP3qHfs4lP3zLr+Hzuc7DGn6Gp91ilyYjIzYVi3Jw59dz1d4BQgA4Ca Qyen/HYxEsixBuVN0rnXvqFm1fANz/ChebNplfJcCXBMAROxAJ71fbJEYOIR+ICr1T3i seYw==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=kJWMXxR4ZhrFXGE0yE40CmzVb/3YbseUq3j7wnyHT4M=; b=blnA9fbFPVa47AgEP629X291BfYutICenFhWg7x3Ct4ldmDuDnke9Vbz5u5cXi7kdW rEDsKJgk5Za5G2ehweEFxwY447hYPH2N+IYiCTMKQR3WFF/WwZ1nGsEZoeCcI9oBrmbY SEhfQP2G4C0Vgc32j16HoMhDkpQjJefoapZlTbLHv6WdRqA0+6gUpzfw1cYa1r9ESw5Z BSfi5/ufh25YQDWLld9LRaBvIi5nKLdUtqR7HE5ZrzmFPLO6OEXH+Fo6R6AVpQ1fkmSf 7l9BTB35jq7fk7NSEKaLvqcNftpBYqdv3ihVJbdyTxLDzZ6ipt8RR1AyD4NaKl5KctMF jafA==
X-Gm-Message-State: APjAAAUUbQWzsbESsyNZ7nubVuiFA9TqfaHATy69+MuVzB1855sKq8yy Ikkrqe0dtDPyH+DA16Qiy4krBd6D8tPBOayrQZIxlq+/
X-Google-Smtp-Source: APXvYqxdS9u0YqTG5EgV5PwBfetALs5+Ek7A/rx1bHKtvZ3fEmZIaSDfjzZVeoK0ImDjUxiEBTBfJ6zxOt8pstRTh7E=
X-Received: by 2002:a1c:988a:: with SMTP id a132mr88833180wme.165.1564256544411; Sat, 27 Jul 2019 12:42:24 -0700 (PDT)
MIME-Version: 1.0
Received: by 2002:a1c:9e09:0:0:0:0:0 with HTTP; Sat, 27 Jul 2019 12:42:22 -0700 (PDT)
Received: by 2002:a1c:9e09:0:0:0:0:0 with HTTP; Sat, 27 Jul 2019 12:42:22 -0700 (PDT)
In-Reply-To: <CAJU8_nVrC93VJhYxN2GGfVDDXz2sS0aKwHABfc2YxfeY5uFBJQ@mail.gmail.com>
References: <350f8dd5-65d4-d2f3-4d65-784c0379f58c@bobbriscoe.net> <40605F1F-A6F5-4402-9944-238F92926EA6@gmx.de> <1563401917.00951412@apps.rackspace.com> <D1595770-9481-46F6-AC50-3A720E28E03D@gmail.com> <d8911b7e-406d-adfd-37a5-1c2c20b353f2@bobbriscoe.net> <CAJU8_nWTuQ4ERGP9PhXhpiju_4750xc3BX10z4yp4an0QBE-xw@mail.gmail.com> <4833615D-4D68-4C95-A35D-BCF9702CEF69@akamai.com> <CAJU8_nVrC93VJhYxN2GGfVDDXz2sS0aKwHABfc2YxfeY5uFBJQ@mail.gmail.com>
From: Jonathan Morton <chromatix99@gmail.com>
Date: Sat, 27 Jul 2019 22:42:22 +0300
Message-ID: <CAJq5cE1AjQTVsoDyC2PeVanivGbEJVxDgsd7jbqV2r=EPh2AgA@mail.gmail.com>
To: Kyle Rose <krose@krose.org>
Cc: "Holland, Jake" <jholland@akamai.com>, tsvwg IETF list <tsvwg@ietf.org>, Bob Briscoe <ietf@bobbriscoe.net>, "ecn-sane@lists.bufferbloat.net" <ecn-sane@lists.bufferbloat.net>
Content-Type: multipart/alternative; boundary="000000000000aad693058eaedb74"
Archived-At: <https://mailarchive.ietf.org/arch/msg/tsvwg/DPxyPyC27SSCxbTH7AQZaufDUwA>
Subject: Re: [tsvwg] [Ecn-sane] per-flow scheduling
X-BeenThere: tsvwg@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Transport Area Working Group <tsvwg.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/tsvwg>, <mailto:tsvwg-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/tsvwg/>
List-Post: <mailto:tsvwg@ietf.org>
List-Help: <mailto:tsvwg-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/tsvwg>, <mailto:tsvwg-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sat, 27 Jul 2019 19:42:27 -0000

RFC compliant traffic finding its way into the L4S queue is one thing - it
obviously results in a performance degradation to one or the other,
depending on other factors - but I'm more concerned about L4S traffic
entering the classic queue, which would have a severe impact on general
traffic throughout.  By default this always occurs when a single queue AQM
that is not L4S aware is encountered.