Re: [babel] Intdir telechat review of draft-ietf-babel-rtt-extension-05

Juliusz Chroboczek <jch@irif.fr> Mon, 12 February 2024 23:19 UTC

Return-Path: <jch@irif.fr>
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 B3EADC151553; Mon, 12 Feb 2024 15:19:05 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -7.106
X-Spam-Level:
X-Spam-Status: No, score=-7.106 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, RCVD_IN_DNSWL_HI=-5, RCVD_IN_ZEN_BLOCKED_OPENDNS=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01, URIBL_BLOCKED=0.001, URIBL_DBL_BLOCKED_OPENDNS=0.001, URIBL_ZEN_BLOCKED_OPENDNS=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=irif.fr
Received: from mail.ietf.org ([50.223.129.194]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id EozQHL0ho1o1; Mon, 12 Feb 2024 15:19:00 -0800 (PST)
Received: from korolev.univ-paris7.fr (korolev.univ-paris7.fr [IPv6:2001:660:3301:8000::1:2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 4FCF5C151552; Mon, 12 Feb 2024 15:18:59 -0800 (PST)
Received: from mailhub.math.univ-paris-diderot.fr (mailhub.math.univ-paris-diderot.fr [81.194.30.253]) by korolev.univ-paris7.fr (8.14.4/8.14.4/relay1/82085) with ESMTP id 41CNIvVT012085; Tue, 13 Feb 2024 00:18:57 +0100
Received: from mailhub.math.univ-paris-diderot.fr (localhost [127.0.0.1]) by mailhub.math.univ-paris-diderot.fr (Postfix) with ESMTP id 61F07A122C; Tue, 13 Feb 2024 00:18:56 +0100 (CET)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=irif.fr; h= content-type:content-type:mime-version:user-agent:references :in-reply-to:subject:subject:from:from:message-id:date:date :received:received; s=dkim-irif; t=1707779935; x=1708643936; bh= AWbQpzDpuZAqD+ATZ88sFYrfBYV33BHHP0xswG1BCAc=; b=JAztg/9h9siPmEdH Gqlk0BowIAKqAgzFYlsSrk2ZHQjOgpQCv5p6zPfL8ndULh9pUP36JoFUnu/Mh9j8 ST7yInAcHyG158nrnJnmX9hFLfyrWqu+AAb+lvB/PUTTK08vLG01F6qb8iS0DIXv ivFdpfa3WY27KDG09NaY3w7fRXRTErLNTiqFId8We+q33DWy4Bs9DjxeW5/xzZl7 R+Jbq3jqVbgoFeXouaGsG0XRri0MmTSg3fUpgOwJYRXl+DjdvjIkYq8Ca6lUp1b6 pTvBgkZMNQi5iPn2E2jiHkFfCjT8N8kwT1jLpxEstxTAwbBCgsivTEEMsYfSso31 GL07fQ==
X-Virus-Scanned: amavisd-new at math.univ-paris-diderot.fr
Received: from mailhub.math.univ-paris-diderot.fr ([127.0.0.1]) by mailhub.math.univ-paris-diderot.fr (mailhub.math.univ-paris-diderot.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id fR9wMslm-Omr; Tue, 13 Feb 2024 00:18:55 +0100 (CET)
Received: from pirx.irif.fr (unknown [78.194.40.74]) (Authenticated sender: jch) by mailhub.math.univ-paris-diderot.fr (Postfix) with ESMTPSA id 11BF3A1440; Tue, 13 Feb 2024 00:18:53 +0100 (CET)
Date: Tue, 13 Feb 2024 00:18:53 +0100
Message-ID: <87bk8l1db6.wl-jch@irif.fr>
From: Juliusz Chroboczek <jch@irif.fr>
To: Antoine Fressancourt <antoine@aft.network>
Cc: int-dir@ietf.org, babel@ietf.org, draft-ietf-babel-rtt-extension.all@ietf.org, last-call@ietf.org
In-Reply-To: <170774892985.36817.5107377234736092892@ietfa.amsl.com>
References: <170774892985.36817.5107377234736092892@ietfa.amsl.com>
User-Agent: Wanderlust/2.15.9 (Almost Unreal) Emacs/29.1 Mule/6.0
MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue")
Content-Type: text/plain; charset="US-ASCII"
X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.7 (korolev.univ-paris7.fr [194.254.61.138]); Tue, 13 Feb 2024 00:18:57 +0100 (CET)
X-Miltered: at korolev with ID 65CAA761.001 by Joe's j-chkmail (http : // j-chkmail dot ensmp dot fr)!
X-j-chkmail-Enveloppe: 65CAA761.001 from mailhub.math.univ-paris-diderot.fr/mailhub.math.univ-paris-diderot.fr/null/mailhub.math.univ-paris-diderot.fr/<jch@irif.fr>
X-j-chkmail-Score: MSGID : 65CAA761.001 on korolev.univ-paris7.fr : j-chkmail score : . : R=. U=. O=. B=0.000 -> S=0.000
X-j-chkmail-Status: Ham
Archived-At: <https://mailarchive.ietf.org/arch/msg/babel/viAK0kx_Og6XiGN76JvOGJLO6WM>
Subject: Re: [babel] Intdir telechat review of draft-ietf-babel-rtt-extension-05
X-BeenThere: babel@ietf.org
X-Mailman-Version: 2.1.39
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: Mon, 12 Feb 2024 23:19:05 -0000

Thanks, Antoine.

> * In some parts of the draft, the authors personalize their text using "we" or
> "our" (for instance in section 3.3 or in the introduction of section 4). The
> authors might want to rephrase those sentences using a more neutral form.

Agreed.

> * In section 4.1, I was frustrated by the use of vague terms like "fairly" or
> "somewhat" which gives the impression that the phenomenon described is
> difficult to observe, and may not require the use of a proper smoothing
> algorithm.

I'll try to find some more serious-looking terms.

> * In section 4.1 and 4.3, the text mentions external references to describe
> algorithms that the implementer could be using to avoid strong oscillations in
> the route selection algorithm. I would have appreciated to have a rough
> intuition of the behavior of those algorithms in the text directly, while
> keeping the reference to point to more detailed descriptions.

I'm not sure how to do that.  Both "exponential average" and "hysteresis
algorithm" are familiar terms, I'm not sure how I can make them more
accurate without spelling out the algorithms in detail.

Thanks again,

-- Juliusz