IETF Logo Mail Archive

Re: [tsvwg] L4S DSCP (was: L4S drafts: Next Steps)

Sebastian Moeller <moeller0@gmx.de> Tue, 30 March 2021 14:59 UTC

Return-Path: <moeller0@gmx.de>
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 6BA4B3A1774 for <tsvwg@ietfa.amsl.com>; Tue, 30 Mar 2021 07:59:22 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.649
X-Spam-Level:
X-Spam-Status: No, score=-1.649 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=no autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=gmx.net
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 djp0-0dgJsaq for <tsvwg@ietfa.amsl.com>; Tue, 30 Mar 2021 07:59:17 -0700 (PDT)
Received: from mout.gmx.net (mout.gmx.net [212.227.15.19]) (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 178303A160A for <tsvwg@ietf.org>; Tue, 30 Mar 2021 07:59:16 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1617116306; bh=5SVmvPBVuKnXbjRKwNDL4ez6eg3kN5vxoENjI+N21oA=; h=X-UI-Sender-Class:Subject:From:In-Reply-To:Date:Cc:References:To; b=agxbJFLr00k11Ki5KWO/FxBlOowkzV5AJP1flF/tHJoiOOJ85a/7wwi4qPOZEM4KT w64dlXyFHpHus+4ltHBUnqvidMIry2YrvBvqzcch815dosX67yaLEA5lUoHcrMwK89 2QznNfYyi9Jy/ssuatmENvhh48AyelE5zQNQpjz8=
X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c
Received: from [192.168.250.106] ([134.76.241.253]) by mail.gmx.net (mrgmx005 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MowKi-1lysQO38yk-00qOHH; Tue, 30 Mar 2021 16:58:26 +0200
Content-Type: text/plain; charset="us-ascii"
Mime-Version: 1.0 (Mac OS X Mail 12.4 \(3445.104.17\))
From: Sebastian Moeller <moeller0@gmx.de>
In-Reply-To: <202103301326.12UDQvLU072487@gndrsh.dnsmgr.net>
Date: Tue, 30 Mar 2021 16:58:25 +0200
Cc: Bob Briscoe <in@bobbriscoe.net>, "tsvwg@ietf.org" <tsvwg@ietf.org>
Content-Transfer-Encoding: quoted-printable
Message-Id: <D562C1E0-FFF1-44C4-AC91-3A79E41F1284@gmx.de>
References: <202103301326.12UDQvLU072487@gndrsh.dnsmgr.net>
To: "Rodney W. Grimes" <ietf@gndrsh.dnsmgr.net>
X-Mailer: Apple Mail (2.3445.104.17)
X-Provags-ID: V03:K1:g287Of673oMhYgs0vs4V93VRk18kzaBoP2waD/rX2B2knRFux+L fzE6GjctePZdIw7w0pEEDEc8ZvDLXUF5r6NxJhVAK13hWz+zProyS7nISWZvpwjTaTcnsXU wJRDeB+uXRr4COoII3IyEFlQb3ck4kFO+Ci2RFGH6eDszoHde2d2WX0hXDCW5CwNM8ZEdKd Hbs/PBWkQXAMMkoyjBW2A==
X-UI-Out-Filterresults: notjunk:1;V03:K0:exoUs+08xTI=:wI8FBxPxHNB/mVu2/eLKbK crfGq2U7QyJM4YeudyVK4LiN0QV5nNqkTVNCKqDtn8lrzpP+JihBBlqil6MoJNWmbbrp8zRD9 4tOTiyI/Vwj3ihPUyAbNUYtfdyrxc+xvAbB7a6qVFQmfygOKAemXbDmtedNS1CUiRQ1bhQAgd 7S0QB4p5H7cYFEFjz+2AbDwRclCjAdUnaja6muqQMz3lyH5eVTvmZ3kheB4UObiHTKvwud4Sg l9NouqtKRk3A6n2eA8cQpZn4zk1Ifhe4JSp9tqdJ52MOqq3sVesqP0VqHPSqNJOSaORPPLqKE +bw2FYjry+RHMkLBYLs5coY6SSX3UjvFN+KZ8SQBOcyIk02zHIYy+rVqMI5SXVa6KEM4BYBxq LETsyS4bYEtaALOESiJ7gMag5/vM5O1vgY69R1ZYiXsSDnuTztC0CCGZW7KkjPU9CO1E62HSh lYSBBxov4+dHE3ZWgyj1u+wNFnKpZudZmlbDT2OOvgyys6Xol7TgQyukTGsQYrjHN2QDBjWVP QvhZh2s6NrMU72RT/ZdVIFfqFp9fUciHzck8eDZtoLzD9eObHbq8OhoCOGP5CUTrwJru3UxJx QGz1qBfn0fJcZf11XhC9xj4EL165NCQa/GV6gdxyeMmmYKV2nPCO5JBOJu0nB6JnahhQIQTl/ /WxgrfWkblUkHWg9YFmQ4rZf3K4L7TXui1O4qg2djBfnoi188grijYgJdWYEzmHlVXGQ7TZzD sIKT9InqGKs+bNb4FU8QxqbEFeHbaoCYWuwW+nsAqbLm+pDz2wNVId8DRXde8d/pnN8N6IiUb zOKgLU8VY8XdWQWzRZxxPsVJWZHTZPNcGZXlcoYvklDGc7YlLuHFJ5HVd6QDrlDnmbLflinrD ZhprgXm+1eBGk+389rO/4nYWAxQCHcyPaGOMPOhSfL1DqqkSpbiBddBrTPFrcDTnEzl3FgVbZ PYOKi1+Uk7DVqkfZO3gd1lgI4g/toRQSF+ZsTTq5QdV270KbovruN9GiUfljoeYvdEakSq2Pd mmpFHhrn+5FDLBkUnnzh6etv/wwlwLmdZ1ErM1B3lnM+HWPUHl44BDlHdbP/PotycbQvluCkg GSvTBD7ys/kG9PynjE5nmriA1Vou4ZAU2RXxLQIQ5D08woc+dQ+bJ2rdiLSvol52S7PxqX/l5 KYU2kNIvW6GSzxNLSJUjInVLs+G7vPwNn0xVIOwrPdIV3Wg9Xcat9BKanDMbgu0G67z9o=
Archived-At: <https://mailarchive.ietf.org/arch/msg/tsvwg/M9Z3giOzcmoFaijRsT7mDxUAXCc>
Subject: Re: [tsvwg] L4S DSCP (was: L4S drafts: Next Steps)
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: Tue, 30 Mar 2021 14:59:22 -0000

Thanks Rodney,


this information is appreciated.

Sebastian

> On Mar 30, 2021, at 15:26, Rodney W. Grimes <ietf@gndrsh.dnsmgr.net> wrote:
> 
>> Bob,
>> 
>> since you asked,
>> 
>>> On Mar 30, 2021, at 10:21, Bob Briscoe <in@bobbriscoe.net> wrote:
>>> [....]
>>> 
>>> [BB] None of these 3 quotes about NQB are anything to do with DSCP feedback, nor reading the DSCP at the receiver.
>> 
>> In Linux look at include/net/dsfield.h (https://elixir.bootlin.com/linux/latest/source/include/net/dsfield.h#L16)
>> This will give the ability inside the kernel to get and set DSCPs for IPv4 and IPv6...
>> Given that TCP Prague lives inside the kernel itself that should not be to hard to use.
>> That will not help for other OSs, but since these do not have L4S compatible protocols today (with TCP Prague being the closest to compatibility) that should not be a show stopper.
> 
> Sebastian, Bob, twvwg,
> I am aware that FreeBSD has similiar features, and some of the userland
> daemons and clients can even be configured to use DSCP's.
> 
> 
>> Best Regards
>> 	Sebastian
> 
> Regards,
> -- 
> Rod Grimes                                                 rgrimes@freebsd.org

v2.23.0 | Report a Bug | By Email