Re: [6lo] Éric Vyncke's Discuss on draft-ietf-6lo-ap-nd-13: (with DISCUSS and COMMENT)

Barry Leiba <barryleiba@computer.org> Wed, 29 January 2020 15:38 UTC

Return-Path: <barryleiba@gmail.com>
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 C8E64120090; Wed, 29 Jan 2020 07:38:06 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.4
X-Spam-Level:
X-Spam-Status: No, score=-1.4 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FREEMAIL_FORGED_FROMDOMAIN=0.25, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.25, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=no 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 B5MVnmbmjgos; Wed, 29 Jan 2020 07:38:05 -0800 (PST)
Received: from mail-io1-f49.google.com (mail-io1-f49.google.com [209.85.166.49]) (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 6A1BB120020; Wed, 29 Jan 2020 07:38:05 -0800 (PST)
Received: by mail-io1-f49.google.com with SMTP id c16so165051ioh.6; Wed, 29 Jan 2020 07:38:05 -0800 (PST)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=7OI1rLlyHIYByqotGBrmBSniKVfk8tbLRr9C5G634wc=; b=fvLETsG93lrxkQs6Mzdt/DJpw+IDaNWbjXkZ+FF7KrtoA0tCK4Wt65MZQHMxgZkl1q 9ZFkSH4duGVv4ay4BalOI93tCAs0+rnkZNFcAE/pIx3a70zhD7jhbKFSXfIKEY5UIZPI 9u1qF13lfUkE0VLjXo7D2i8NLpbTs7+r0DYqLuqeoBhm9WL05rg0N9tytXfMSkl1kujk INeusLZwPxixH4YAfE7ZiDNeJkuqWG7A9R5sG3zBDAbE5F9j8Rt3+1fH/YtnPkqfL4pp l4PVrvNnHRdMX16VV/bPF2DKHnOlXiapYQz5APQ9V0SnzqdInAVG/Yfo69qfIS3wt2SA 3Dag==
X-Gm-Message-State: APjAAAUCxYWLsnFqYRy7kiQcecwUHKX/VL9JDM9ZPcge8/sscjsjIpIO voqXlz48joBVTAWvXI6EG8To4Is415ZrJcViPhw=
X-Google-Smtp-Source: APXvYqxDAakY0SJQIXBVvIOfs+2P4PXnfGdZod9Dizk0hpsVGAvysU6t6E84Fea3gMxEyoGJQQ5qZYyCreNxStc27D0=
X-Received: by 2002:a5e:8417:: with SMTP id h23mr35548ioj.17.1580312284440; Wed, 29 Jan 2020 07:38:04 -0800 (PST)
MIME-Version: 1.0
References: <158030752268.2728.2544838912831012540.idtracker@ietfa.amsl.com>
In-Reply-To: <158030752268.2728.2544838912831012540.idtracker@ietfa.amsl.com>
From: Barry Leiba <barryleiba@computer.org>
Date: Wed, 29 Jan 2020 07:37:51 -0800
Message-ID: <CALaySJKFbBvFviDijJ-cqQ=zU2yo+F8w45icEasbjeQpvFmVQg@mail.gmail.com>
To: Éric Vyncke <evyncke@cisco.com>
Cc: The IESG <iesg@ietf.org>, draft-ietf-6lo-ap-nd@ietf.org, 6lo-chairs@ietf.org, Shwetha Bhandari <shwethab@cisco.com>, 6lo@ietf.org
Content-Type: text/plain; charset="UTF-8"
Archived-At: <https://mailarchive.ietf.org/arch/msg/6lo/wDloDFLWo76sNKFwg3EQq7Xob8E>
Subject: Re: [6lo] Éric Vyncke's Discuss on draft-ietf-6lo-ap-nd-13: (with DISCUSS and COMMENT)
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: Wed, 29 Jan 2020 15:38:07 -0000

> -- Section 4.4 --
> The length of the reserved field is not specified. Or am I missing something
> obvious ?

Well, it's clear from the diagram: 8 bits, and 32 bits.  But, yes, I
agree that it would good to both explicitly say that and to explicitly
say the usual "MUST be set to zero on send and ignored on receipt"
thing.

Barry