Re: [babel] [Last-Call] RtgDir review: draft-ietf-babel-information-model-11.txt

Joe Abley <jabley@hopcount.ca> Tue, 20 October 2020 10:53 UTC

Return-Path: <jabley@hopcount.ca>
X-Original-To: babel@ietfa.amsl.com
Delivered-To: babel@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id EE9F03A1160 for <babel@ietfa.amsl.com>; Tue, 20 Oct 2020 03:53:16 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.097
X-Spam-Level:
X-Spam-Status: No, score=-2.097 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=hopcount.ca
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 yPsfCikiiA-R for <babel@ietfa.amsl.com>; Tue, 20 Oct 2020 03:53:15 -0700 (PDT)
Received: from mail-il1-x12b.google.com (mail-il1-x12b.google.com [IPv6:2607:f8b0:4864:20::12b]) (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 DE1C33A115A for <babel@ietf.org>; Tue, 20 Oct 2020 03:53:15 -0700 (PDT)
Received: by mail-il1-x12b.google.com with SMTP id p9so1621475ilr.1 for <babel@ietf.org>; Tue, 20 Oct 2020 03:53:15 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=hopcount.ca; s=google; h=content-transfer-encoding:mime-version:subject:from:in-reply-to:cc :date:message-id:references:to; bh=A5iqc/qWUDB8VTYzoJID1XlV9/ofsIbMYXcn9dY3SyM=; b=MxgFKZD5w1hLjqiNMZl0XSPTEaqEecAP8GJWC/h0EqFFQBy2SgDoz+aJXNREEL7v1l gwQMZmwH/1H7fUmgegTFquvTNouG1UA/0wy6FfBYMsox5hGQGI1JFAqYy6UqwrXsBjoF YGfEOArDVDQ2+dwi/qpO6naje81o0ripXGz8w=
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:content-transfer-encoding:mime-version:subject :from:in-reply-to:cc:date:message-id:references:to; bh=A5iqc/qWUDB8VTYzoJID1XlV9/ofsIbMYXcn9dY3SyM=; b=tg1BNK1ISFTgsykXTD3nBszr6B2JTaAili30kSBEYXjGdsMl6zSKmm5v/iHnsfCfwU oN433DoHmRF8Ub3X6lvFy5RAaZxRpZtpx6maJhMrWFstUfWRo+A8AutK46PgkhM8VXLQ a+HFNd2oZxUICGEWbqJg34Tn4PyJnwAc8cfHDxygfPpXpA5PluDMnGbLYaDQoXOesSiq 1H80HfsKSJesbItZ5lmjsldo3fvSWpGWTTRJ/+54Au5aOEUtJ2aJkr6F/PyACdAconQ/ mKMlqxj78kGZaKowmAojvKMzKWSw7fswG0JhaXaKX3gYJges9hJiJpc8iHVH9Vv6SYD5 AdIA==
X-Gm-Message-State: AOAM5328f5jintfDiwxm1Ix+T/1WnJizEmT59eLLD/u1iaWzqHCUjG31 jCMmvD0FXymDt5th+aVUyT8/MQ==
X-Google-Smtp-Source: ABdhPJzYVl5f9MnJpgv2iv6ER7+U8Nf0fciEz62r8RcRBmMbRMHjuRSewL6x1HNoz86k52Mk9LfDMA==
X-Received: by 2002:a92:b109:: with SMTP id t9mr1322513ilh.191.1603191195057; Tue, 20 Oct 2020 03:53:15 -0700 (PDT)
Received: from ?IPv6:2607:f2c0:e784:c7:e8c3:131d:a176:6097? ([2607:f2c0:e784:c7:e8c3:131d:a176:6097]) by smtp.gmail.com with ESMTPSA id 128sm1265772iow.50.2020.10.20.03.53.12 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 20 Oct 2020 03:53:13 -0700 (PDT)
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
Mime-Version: 1.0 (1.0)
From: Joe Abley <jabley@hopcount.ca>
In-Reply-To: <8EAB2DD3-8337-42D6-ACC6-82197CC958E9@apnic.net>
Cc: rtg-ads@ietf.org, rtg-dir@ietf.org, babel@ietf.org, draft-ietf-babel-information-model.all@ietf.org, last-call@ietf.org
Date: Tue, 20 Oct 2020 06:53:12 -0400
Message-Id: <C24C7E7B-DDE9-42BD-B71E-7FF48263CA8B@hopcount.ca>
References: <8EAB2DD3-8337-42D6-ACC6-82197CC958E9@apnic.net>
To: Geoff Huston <gih@apnic.net>
X-Mailer: iPhone Mail (18A393)
Archived-At: <https://mailarchive.ietf.org/arch/msg/babel/TvPd_i9fd2IsjMxufAu-akP8WxI>
Subject: Re: [babel] [Last-Call] RtgDir review: draft-ietf-babel-information-model-11.txt
X-BeenThere: babel@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: "A list for discussion of the Babel Routing Protocol." <babel.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/babel>, <mailto:babel-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/babel/>
List-Post: <mailto:babel@ietf.org>
List-Help: <mailto:babel-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/babel>, <mailto:babel-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 20 Oct 2020 10:53:17 -0000

(I am not on all these lists in the headers but I'll leave the recipient list intact anyway.)

On Oct 20, 2020, at 06:22, Geoff Huston <gih@apnic.net> wrote:

> "centiseconds"? Really? "tenths of seconds" would be clearer to most
> readers!

Perhaps this was intentional, but a centisecond is a hundredth of a second, not a tenth (just as a centimetre is a hundredth of a metre). A tenth of a second is a decisecond.

Centi- is a metric prefix recognised by SI (in which system the second is a base unit) so I think it's fair to say that centisecond is not an outlandish choice of unit, although millisecond would be more consistent in many engineering contexts.

But apparently the SI system units is not taught in schools everywhere even today (notably in much of the US) so maybe spelling it out as you suggest is reasonable. 


Joe