Re: [6lo] AP-ND 22

Michael Richardson <mcr+ietf@sandelman.ca> Sat, 25 April 2020 22:43 UTC

Return-Path: <mcr+ietf@sandelman.ca>
X-Original-To: 6lo@ietfa.amsl.com
Delivered-To: 6lo@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id B532F3A0C0B; Sat, 25 Apr 2020 15:43:11 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.899
X-Spam-Level:
X-Spam-Status: No, score=-1.899 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=unavailable 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 BfTySdRdgYgS; Sat, 25 Apr 2020 15:43:07 -0700 (PDT)
Received: from tuna.sandelman.ca (tuna.sandelman.ca [209.87.249.19]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id DACF33A0C09; Sat, 25 Apr 2020 15:43:05 -0700 (PDT)
Received: from sandelman.ca (obiwan.sandelman.ca [IPv6:2607:f0b0:f:2::247]) by tuna.sandelman.ca (Postfix) with ESMTP id EC5303897D; Sat, 25 Apr 2020 18:41:10 -0400 (EDT)
Received: from localhost (localhost [IPv6:::1]) by sandelman.ca (Postfix) with ESMTP id 3A0D39F7; Sat, 25 Apr 2020 18:43:01 -0400 (EDT)
From: Michael Richardson <mcr+ietf@sandelman.ca>
To: "Pascal Thubert (pthubert)" <pthubert=40cisco.com@dmarc.ietf.org>
cc: Benjamin Kaduk <kaduk@mit.edu>, Rene Struik <rstruik.ext@gmail.com>, Mohit Sethi <mohit.m.sethi@ericsson.com>, Jim Schaad <ietf@augustcellars.com>, "6lo-chairs@ietf.org" <6lo-chairs@ietf.org>, Erik Kline <ek@loon.com>, "Shwetha Bhandari (shwethab)" <shwethab@cisco.com>, "'6lo@ietf.org'" <6lo@ietf.org>
In-Reply-To: <MN2PR11MB3565827911F74C20D5A44531D8D00@MN2PR11MB3565.namprd11.prod.outlook.com>
References: <MN2PR11MB3565BD638A8BCEE57216998BD8D00@MN2PR11MB3565.namprd11.prod.outlook.com> <MN2PR11MB3565827911F74C20D5A44531D8D00@MN2PR11MB3565.namprd11.prod.outlook.com>
X-Mailer: MH-E 8.6; nmh 1.7+dev; GNU Emacs 25.1.1
X-Face: $\n1pF)h^`}$H>Hk{L"x@)JS7<%Az}5RyS@k9X%29-lHB$Ti.V>2bi.~ehC0; <'$9xN5Ub# z!G,p`nR&p7Fz@^UXIn156S8.~^@MJ*mMsD7=QFeq%AL4m<nPbLgmtKK-5dC@#:k
MIME-Version: 1.0
Content-Type: multipart/signed; boundary="=-=-="; micalg="pgp-sha256"; protocol="application/pgp-signature"
Date: Sat, 25 Apr 2020 18:43:01 -0400
Message-ID: <18813.1587854581@localhost>
Archived-At: <https://mailarchive.ietf.org/arch/msg/6lo/h2ItvhkgoZK22ntOCpJika0n9kY>
Subject: Re: [6lo] AP-ND 22
X-BeenThere: 6lo@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "Mailing list for the 6lo WG for Internet Area issues in IPv6 over constrained node networks." <6lo.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/6lo>, <mailto:6lo-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/6lo/>
List-Post: <mailto:6lo@ietf.org>
List-Help: <mailto:6lo-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/6lo>, <mailto:6lo-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sat, 25 Apr 2020 22:43:12 -0000

Pascal Thubert \(pthubert\) <pthubert=40cisco.com@dmarc.ietf.org> wrote:
    > On the side, It appears that the key representations are typically of
    > length 8n +1. Considering that IPv6 ND aligns its options at 8n bytes,
    > it would make sense to start a byte ahead like this, don't you think?

I think it's a good idea if the content would otherwise be padding.

--
Michael Richardson <mcr+IETF@sandelman.ca>, Sandelman Software Works
 -= IPv6 IoT consulting =-