Re: [v6ops] Flow Label Load Balancing

Fernando Gont <fernando@gont.com.ar> Sat, 28 November 2020 03:52 UTC

Return-Path: <fernando@gont.com.ar>
X-Original-To: v6ops@ietfa.amsl.com
Delivered-To: v6ops@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 27F063A0DEC; Fri, 27 Nov 2020 19:52:48 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.9
X-Spam-Level:
X-Spam-Status: No, score=-1.9 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, NICE_REPLY_A=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] 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 uVi5Btv9E5tD; Fri, 27 Nov 2020 19:52:46 -0800 (PST)
Received: from fgont.go6lab.si (fgont.go6lab.si [IPv6:2001:67c:27e4::14]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id BA86A3A0DEA; Fri, 27 Nov 2020 19:52:45 -0800 (PST)
Received: from [IPv6:2800:810:464:8164:d564:510f:6fb3:4524] (unknown [IPv6:2800:810:464:8164:d564:510f:6fb3:4524]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by fgont.go6lab.si (Postfix) with ESMTPSA id 512EA2845F1; Sat, 28 Nov 2020 03:52:42 +0000 (UTC)
To: Mark Smith <markzzzsmith@gmail.com>, Tom Herbert <tom@herbertland.com>
Cc: IPv6 Operations <v6ops@ietf.org>, tcpm <tcpm@ietf.org>
References: <CAEGSd=DY8t8Skor+b6LSopzecoUUzUZhti9s0kdooLZGxPEt+w@mail.gmail.com> <d29042a7-742b-a445-cf60-2773e5515ae5@gont.com.ar> <CALx6S37+1duoNGR3dZWesHsZvx15kX9wCWufPMh=esvMaSMF_g@mail.gmail.com> <63e7aad3-7094-7492-dbe4-3eefb5236de3@gont.com.ar> <CALx6S37t4jump6S-R5_xdo5DF+RnHtT4rU5-RuiC-2GQ0PXxkQ@mail.gmail.com> <96b6d04b-e5bb-ba79-0281-e9599109be95@gont.com.ar> <CALx6S34uCrA1QdvLV8fpRKaJGLWMgtCmBCnrsBjU3TS+kXUs3Q@mail.gmail.com> <CAO42Z2xn_+7EVpjGyEU3aAdBmt1h=a4MPXFjjoTi_JeM2w9pkg@mail.gmail.com>
From: Fernando Gont <fernando@gont.com.ar>
Message-ID: <f66cbccd-55ed-375b-743b-7fc6c48a50c2@gont.com.ar>
Date: Sat, 28 Nov 2020 00:52:35 -0300
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.1
MIME-Version: 1.0
In-Reply-To: <CAO42Z2xn_+7EVpjGyEU3aAdBmt1h=a4MPXFjjoTi_JeM2w9pkg@mail.gmail.com>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Archived-At: <https://mailarchive.ietf.org/arch/msg/v6ops/Q4KFhTvB0VmhtZ9EcOUC4M4yHc4>
Subject: Re: [v6ops] Flow Label Load Balancing
X-BeenThere: v6ops@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: v6ops discussion list <v6ops.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/v6ops>, <mailto:v6ops-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/v6ops/>
List-Post: <mailto:v6ops@ietf.org>
List-Help: <mailto:v6ops-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/v6ops>, <mailto:v6ops-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sat, 28 Nov 2020 03:52:48 -0000

On 27/11/20 21:32, Mark Smith wrote:
> 
> On Sat, 28 Nov 2020, 10:32 Tom Herbert, <tom@herbertland.com 
> <mailto:tom@herbertland.com>> wrote:
[....]
> 
> If hosts start trying to take control of steering traffic by varying the 
> flow label value within a flow, making the network's job harder, and the 
> network being blamed for the possibility bad network performance that 
> may result, the response will be both quick and easy - network operators 
> will switch off looking the Flow Label.

THat is *exactly* why I noted that I'm concerned that we seem to be on 
the path of making the FLow Label unusable.

Thanks,
-- 
Fernando Gont
e-mail: fernando@gont.com.ar || fgont@si6networks.com
PGP Fingerprint: 7809 84F5 322E 45C7 F1C9 3945 96EE A9EF D076 FFF1