Re: [tsvwg] Rregarding soft-state and UDP options

Joe Touch <touch@strayalpha.com> Sat, 04 January 2020 22:59 UTC

Return-Path: <touch@strayalpha.com>
X-Original-To: tsvwg@ietfa.amsl.com
Delivered-To: tsvwg@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 5AC4A1200A4 for <tsvwg@ietfa.amsl.com>; Sat, 4 Jan 2020 14:59:46 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.218
X-Spam-Level:
X-Spam-Status: No, score=-1.218 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NEUTRAL=0.779, URIBL_BLOCKED=0.001] autolearn=no autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=strayalpha.com
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 OMudAtx_4mLV for <tsvwg@ietfa.amsl.com>; Sat, 4 Jan 2020 14:59:45 -0800 (PST)
Received: from server217-3.web-hosting.com (server217-3.web-hosting.com [198.54.115.226]) (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 2804E12009E for <tsvwg@ietf.org>; Sat, 4 Jan 2020 14:59:45 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=strayalpha.com; s=default; h=To:References:Message-Id:Cc:Date:In-Reply-To: From:Subject:Mime-Version:Content-Type:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=ZDpo+TZsC8tGbY6ZWSz4HWKJ0DVR19BT/Ar8gnhb4So=; b=f43qdLQsosNyfVVm5Hb85/S+H oekh2JLnkFQWulVWJB6i+QVKjyTkx/Ma1hhX6Zyk5vy/ICXnHH/9H5IbOdSZFMNkdBhrnGywKVne3 goCLBgk1MfS79tuF5asYqO/Crs89Yl9wW2D0jCCswmZ2PrwVS2u+7wpm79gmmhFhRJIYsyfbeSJkB MZ0xeD8iX84wDym80nlR5FERWdpiUWC6cnG05eZAvbHTjVgXyyPbvHzasTmEC9qV6e5FMf4GuvpL2 hN2rIDbJpA8nF40QE3GkKlPtIuNtu5Fd1IVDqQveJqiuuFoIvk5rMxcjiqx5jUFgyf4R25i5WNU4x IY3bvMW6g==;
Received: from cpe-172-250-225-198.socal.res.rr.com ([172.250.225.198]:58957 helo=[192.168.1.10]) by server217.web-hosting.com with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.92) (envelope-from <touch@strayalpha.com>) id 1insOR-0047wd-L9; Sat, 04 Jan 2020 17:59:44 -0500
Content-Type: multipart/alternative; boundary="Apple-Mail=_3F3B9517-0FCC-4ACE-94CD-64ECC9F35FE9"
Mime-Version: 1.0 (Mac OS X Mail 13.0 \(3608.40.2.2.4\))
From: Joe Touch <touch@strayalpha.com>
In-Reply-To: <CACL_3VF1_tEN91a3Ze34mjm1K7=6f-9qaBN8Gm1c1vwCPCMgHw@mail.gmail.com>
Date: Sat, 04 Jan 2020 14:59:38 -0800
Cc: Tom Herbert <tom@herbertland.com>, TSVWG <tsvwg@ietf.org>
Message-Id: <3EBC5A35-E84D-4193-958E-122F28BBA132@strayalpha.com>
References: <CALx6S36227JnMkaZtPUvJoY5Pw-rQgy2R6tqt1PF_L=bgCjxCA@mail.gmail.com> <85C8C994-3FEA-4DF4-8C46-75CB205D09EA@strayalpha.com> <CALx6S34EfhcthoG4Qtr0JtfsdqQPr-2=havTvq_7nh9K8XDhJA@mail.gmail.com> <5E21B9BD-3148-43C9-BCB8-E6F5DFCE69C3@strayalpha.com> <CACL_3VHvHQZgN40VDKg6+ZidmjLq5SisaqZ9ARZZNEq10q7gBw@mail.gmail.com> <251CF72E-05E3-4644-A31E-8B21134B5060@strayalpha.com> <CALx6S37S+6=6=Uv-kFKinS0EXOQ33ie-UsH0dv4HW8skeE=jvw@mail.gmail.com> <C10CCF7C-712A-4667-B9E3-8C9AEDABD7A5@strayalpha.com> <CACL_3VF1_tEN91a3Ze34mjm1K7=6f-9qaBN8Gm1c1vwCPCMgHw@mail.gmail.com>
To: "C. M. Heard" <heard@pobox.com>
X-Mailer: Apple Mail (2.3608.40.2.2.4)
X-OutGoing-Spam-Status: No, score=-1.0
X-AntiAbuse: This header was added to track abuse, please include it with any abuse report
X-AntiAbuse: Primary Hostname - server217.web-hosting.com
X-AntiAbuse: Original Domain - ietf.org
X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12]
X-AntiAbuse: Sender Address Domain - strayalpha.com
X-Get-Message-Sender-Via: server217.web-hosting.com: authenticated_id: touch@strayalpha.com
X-Authenticated-Sender: server217.web-hosting.com: touch@strayalpha.com
X-Source:
X-Source-Args:
X-Source-Dir:
X-From-Rewrite: unmodified, already matched
Archived-At: <https://mailarchive.ietf.org/arch/msg/tsvwg/HarWPtvyLTbzCxXJz2KH46KB9Bo>
Subject: Re: [tsvwg] Rregarding soft-state and UDP options
X-BeenThere: tsvwg@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Transport Area Working Group <tsvwg.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/tsvwg>, <mailto:tsvwg-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/tsvwg/>
List-Post: <mailto:tsvwg@ietf.org>
List-Help: <mailto:tsvwg-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/tsvwg>, <mailto:tsvwg-request@ietf.org?subject=subscribe>
X-List-Received-Date: Sat, 04 Jan 2020 22:59:47 -0000


> On Jan 4, 2020, at 2:52 PM, C. M. Heard <heard@pobox.com> wrote:
> 
> On Sat, Jan 4, 2020 at 2:14 PM Joe Touch wrote:
> A deliberate design decision is to let the receiver decide what to do when authentication fails. 
> 
> If they know about authentication, then they can enforce it. But they can always have ignored it so there’s no benefit to “forcing” it to be acted upon.
> 
> And it’s not “regardless of having an example”. That’s the reason why we decided not to design features into this mechanism - the lack of an example.
> 
> A design goal from the start was that receivers would decide whether they wanted to enforce an option; it isn’t in the hands of the transmitter to make that decision, largely because UDP is stateless. If you want enforcement, create state - and let that state be the way that these sorts of things are enforced.
> 
> Without that state, you can’t know what’s being ignored or implemented incorrectly anyway.
> 
> For the record, I do not agree with any of these design decisions. I have objected before, but perhaps my objections were not sufficiently explicit.
> 
> As far as I know, there has been no consensus call on these matters, If I end up "in the rough" after such a consensus call, so be it, but I want such a call to take place.

We’ve asked for feedback multiple times. There will be calls as we move forward as well.

But we’ve also asked for *examples*, not merely pleas. Absent those, it’s hard to understand why these are not driving the design towards arbitrary complexity for the sake of hypotheticals.

Joe