Re: Next Steps on DAD Improvements

Erik Nordmark <nordmark@acm.org> Wed, 07 October 2015 06:12 UTC

Return-Path: <nordmark@acm.org>
X-Original-To: ipv6@ietfa.amsl.com
Delivered-To: ipv6@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 605181AC3B1 for <ipv6@ietfa.amsl.com>; Tue, 6 Oct 2015 23:12:35 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.934
X-Spam-Level:
X-Spam-Status: No, score=-1.934 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_SOFTFAIL=0.665] autolearn=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 H8cflsu2QFUK for <ipv6@ietfa.amsl.com>; Tue, 6 Oct 2015 23:12:34 -0700 (PDT)
Received: from c.mail.sonic.net (c.mail.sonic.net [64.142.111.80]) (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 18D381AC3A6 for <ipv6@ietf.org>; Tue, 6 Oct 2015 23:12:34 -0700 (PDT)
Received: from [192.168.1.13] (107-128-212-135.lightspeed.sntcca.sbcglobal.net [107.128.212.135]) (authenticated bits=0) by c.mail.sonic.net (8.15.1/8.15.1) with ESMTPSA id t976CVxw005254 (version=TLSv1.2 cipher=DHE-RSA-AES128-SHA bits=128 verify=NOT); Tue, 6 Oct 2015 23:12:31 -0700
Subject: Re: Next Steps on DAD Improvements
To: Bob Hinden <bob.hinden@gmail.com>, IPv6 List <ipv6@ietf.org>
References: <8CD12D24-FFB3-4F92-9E13-B4D9A40F3B3A@gmail.com>
From: Erik Nordmark <nordmark@acm.org>
Message-ID: <5614B7CF.3000603@acm.org>
Date: Tue, 06 Oct 2015 23:12:31 -0700
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:38.0) Gecko/20100101 Thunderbird/38.3.0
MIME-Version: 1.0
In-Reply-To: <8CD12D24-FFB3-4F92-9E13-B4D9A40F3B3A@gmail.com>
Content-Type: multipart/alternative; boundary="------------010804010400040604020903"
X-Sonic-CAuth: UmFuZG9tSVZiJqcWeTAcX/Ligfm7Jdzic8xT9bWD9ToXDSxl3asOVgkT72CLtxf+L8Boq3AngoRZHYOF76lJOsjLaTMEX/VoByJ9i4SLlz4=
X-Sonic-ID: C;VNayZLps5RG6e70U9jFv0A== M;JqfYZLps5RG6e70U9jFv0A==
X-Sonic-Spam-Details: 0.0/5.0 by cerberusd
Archived-At: <http://mailarchive.ietf.org/arch/msg/ipv6/TLWBF49Sbp0HQF9CDyQuFCEUnHA>
X-BeenThere: ipv6@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: "IPv6 Maintenance Working Group \(6man\)" <ipv6.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/ipv6>, <mailto:ipv6-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/ipv6/>
List-Post: <mailto:ipv6@ietf.org>
List-Help: <mailto:ipv6-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/ipv6>, <mailto:ipv6-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 07 Oct 2015 06:12:35 -0000

Bob and Ole,

Did you determine any WG consensus on doing or not doing something with 
DAD in 6man?
I didn't see any conclusion to this thread.

Thanks,
    Erik

On 6/8/15 1:02 PM, Bob Hinden wrote:
> At the 6man WG meeting in Dallas there was discussion on what to do (if anything) about duplicate address detection.  The background on this is documented in https://datatracker.ietf.org/doc/draft-yourtchenko-6man-dad-issues/
>
> Should we work on the robustness and efficiency issues of DAD?  For example, improving DAD in environments where nodes sleep and on links with high packet loss.  We think that DAD robustness and efficiency are intertwined and we need solutions that take both into account.
>
> In case the WG wants to address these issues, there is an outline of how they can be addressed in https://datatracker.ietf.org/doc/draft-nordmark-6man-dad-approaches/.  This is probably not the only way they can be addressed, but the draft indicates that the issues are solvable.
>
> The chair would like your feedback on this issue and if there is interest we will schedule an agenda slot in Prague.
>
> Bob and Ole
> 6MAN Chairs
>
>
>
>
> --------------------------------------------------------------------
> IETF IPv6 working group mailing list
> ipv6@ietf.org
> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
> --------------------------------------------------------------------