Re: [dispatch] Tiny update to RFC 3405

Timothy Mcsweeney <> Mon, 13 July 2020 13:33 UTC

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Date: Mon, 13 Jul 2020 09:33:27 -0400 (EDT)
From: Timothy Mcsweeney <>
Reply-To: Timothy Mcsweeney <>
To: =?UTF-8?Q?Martin_J=2E_D=C3=BCrst?= <>
Cc: Ben Campbell <>, DISPATCH WG <>, Patrick McManus <>
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Subject: Re: [dispatch] Tiny update to RFC 3405
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>The current BCP 35 doesn't contain such requirements, and
>therefore doesn't make any sense.

That's right, BCP doesn't contain such requirements.
Whether or not makes sense to you is immaterial.
Thank you for helping me state my case.


On July 12, 2020 at 7:43 AM "Martin J. Dürst" <> wrote:

On 10/07/2020 04:43, Timothy Mcsweeney wrote:
You're talking about the [ 10 <" rel="nofollow">]" rel="noopener" target="_blank" data-mce-href=">]">>]
reference in section 3.1.1 in 3405
<" rel="noopener nofollow" target="_blank">> and when I click on the
reference it sends me right to BCP35 <" rel="nofollow">" rel="noopener" target="_blank" data-mce-href=">">>.
When I look at

[10] Petke, R. and I. King, "Registration Procedures for URL Scheme
Names", BCP 35, RFC 2717, January 1999.
it has two links, one for BCP 35 (which now redirects to something else
which doesn't actually match the reference data) and one for RFC 2717
(which matches the original reference, including author and date of

RFC 2717 then says:

2.2 The IETF Tree

The IETF tree is intended for URL schemes of general interest to the
Internet community. The tree exists for URL schemes that require a
substantive review and approval process. It is expected that
applicability statements for particular applications will be
published from time to time that recommend implementation of, and
support for, URL schemes that have proven particularly useful in
those contexts.

>The reason for the update is that IETF tree registrations *are* required.
Yes, and the closest to that ("URL schemes of general interest to the
Internet community", "require a substantive review and approval
process") we currently have is permanent registration, so that's where
Ted's proposal (which I fully support) comes from.

That is now, scheme registration is required, including provisionals. See, no bug.
No. That there's a link somewhere doesn't mean you can interpret things
any which way. The reference you follow (in one specific way) comes from

3.1.1 Only Schemes in the IETF Tree Allowed

In order to be inserted into the URI.ARPA zone, the subsequent URI
scheme MUST be registered under the IETF URI tree. The requirements
for this tree are specified in [10].

This means that the reference is for defining the requirements of the
IETF URI tree. The current BCP 35 doesn't contain such requirements, and
therefore doesn't make any sense. The old BCP 35 (RFC 2717) is clear,
but is no longer in force. As a consequence, we have a dangling
reference (IETF Tree is no longer defined in a valid IETF spec). We
cannot just say "let's assume this means whatever suits me best" or "by
chance there's a link (out of two) that leads to a spec that includes
something that suits me", but we have to recognize that we have a
problem with the spec (when updating BCP 35, its authors forgot to
update RFC 3405), and have to fix that.

And the fix that Ted is proposing is the fix that is closest to the
original intent, and takes into account the reason for the original

Regards, Martin.


On July 9, 2020 at 3:09 PM Ted Hardie <> wrote:
>> On Thu, Jul 9, 2020 at 10:28 AM Timothy Mcsweeney <
>> <mailto:>> wrote:
>> __
>> Ted,
>> Section 2 (Updated Requirements) of your draft says:
>> "All registrations in URI.ARPA MUST be for schemes which are permanent
>> registrations, as they are described in BCP 35."
>> I take that as:
>> We must update this because permanent registrations are not required.
>> Otherwise there is no reason for an update.
>> The reason for the update is that IETF tree registrations *are* required.
>> That effectively closes the registry, without the community having made the
>> affirmative decision to do so. I want to fix that bug.
>> I currently think that the closest replacement to the IETF tree would be
>> permanent registration and that we should fix this by requiring that. But I'm
>> happy to see a clear draft espousing some other way of fixing the bug; if you
>> have an idea about that, please write the draft.
>> regards,
>> Ted
>> If you are going to argue both sides, my draft and I will just stay out of
>> it. Here is your pointer.
>> Tim
>>> On July 9, 2020 at 11:57 AM Ted Hardie <
>>> <mailto:>> wrote:
>>> Howdy,
>>> On Thu, Jul 9, 2020 at 7:20 AM Timothy Mcsweeney <
>>> <mailto:>> wrote:
>>> __
>>> Hi Ben,
>>> Thanks for the heads up on the deadline,
>>> I am a little surprised that you are choosing to discuss this at all
>>> with pending
>>> registrations and I obviously disagree with that. But if there are
>>> more than 5 people besides Ted that think the current rules for
>>> provisionals in the zone
>>> I don't think I've seen anyone but you argue that the current rules
>>> permit provisionals in the zone; if I have missed others reading the
>>> rules that way, I'd appreciate a pointer.
>>> I think, though, that the key thing is to get some clarity on what the
>>> rules should be after the elimination of the IETF tree. Since you
>>> obviously disagree with my proposal, having your alternative spelled in a
>>> draft does seem like the best way forward. Wherever dispatch sends the
>>> question would then have two clear proposals to choose between.
>>> regards,
>>> Ted Hardie
>>> are
>>> too open and need to be further constrained then I will submit a
>>> draft that does
>>> just that before the deadline.
>>>> On July 8, 2020 at 10:36 PM Ben Campbell <
>>>> <mailto:>> wrote:
>>>> Hi Tim,
>>>> Do you plan to submit an internet-draft? If so, please be advised
>>>> that the deadline for drafts prior to IETF108 is this coming Monday
>>>> (7/13). If you submit a draft prior to the deadline, we can consider
>>>> it along with Ted’s draft (either on the list or possibly in the
>>>> IETF108 DISPATCH meeting).
>>>> Thanks,
>>>> Ben.
>>>>> On Jul 7, 2020, at 9:03 AM, Timothy Mcsweeney <
>>>>> <mailto:>> wrote:
>>>>> Hi All,
>>>>> Updating RFC3405 will necessarily require changes to RFC3401 as
>>>>> stated in its
>>>>> introduction. "This document will be updated and or obsoleted when
>>>>> changes
>>>>> are made to the DDDS specifications."
>>>>> We are now changing two RFCs so I don't think this fits as a
>>>>> "simple administrative".
>>>>> But, I may have a work around that is simple and also solves the
>>>>> provisional registration problem as stated by Ted. I could have
>>>>> ready in a day or so.
>>>>> Tim
>>>>>> On July 7, 2020 at 3:34 AM "Martin J. Dürst" <
>>>>>> <mailto:>> wrote:
>>>>>> On 23/06/2020 07:51, Ben Campbell wrote:
>>>>>>> Hi Everyone,
>>>>>>> The ART ADs have reminded the chairs that our charter allows us
>>>>>>> to adopt “simple administrative” work such as IANA registration
>>>>>>> documents. This draft seems to fit squarely in that category..
>>>>>>> Does anyone see a reason we shouldn’t just adopt it, with the
>>>>>>> expectation of going immediately to WGLC? (The last-call timeline
>>>>>>> is the same either way, either 2 weeks WGLC and 2 weeks IETF LC
>>>>>>> for a working group draft, or 4 weeks IETF LC for an AD sponsored
>>>>>>> draft.)
>>>>>> Triggered by the recent discussion, I had a look at Ted's draft
>>>>>> and the
>>>>>> mail up to today. To me, both AD sponsored and Dispatch WG look
>>>>>> reasonable, with a slight preference for the former (if asked to
>>>>>> express
>>>>>> such a preference).
>>>>>> With respect to "pending registrations", I do not think these are
>>>>>> relevant, in particular because the thing in question isn't
>>>>>> actually a
>>>>>> scheme, as discussed on the relevant list.
>>>>>> I have one comment: The abstract currently reads
>>>>>> "This document removes references to the IETF tree of URI
>>>>>> registrations
>>>>>> for registrations in URI.ARPA.". I found this hard to read, and I
>>>>>> guess
>>>>>> it's because of the "registrations for registrations" piece.
>>>>>> Unless one
>>>>>> is very familiar with the matter at hand, it's easy to think that
>>>>>> both
>>>>>> occurrences of "registration" are referencing the same thing.
>>>>>> While I'm
>>>>>> at it, it would also be good if the abstract mentioned something
>>>>>> positive. I think a less normative version of (the single sentence
>>>>>> that
>>>>>> is) Section 2 would serve well as the abstract.
>>>>>> Regards, Martin.
>>>>>>> Thanks!
>>>>>>> Ben (as co-chair)
>>>>>>>> On Jun 3, 2020, at 6:13 PM, Ted Hardie <
>>>>>>>> <mailto:>> wrote:
>>>>>>>> Howdy,
>>>>>>>> This is one the shortest drafts I've ever written:
>>>>>>>> <
>>>>>>>> .. Basically, RFC 3405 used to require that registrations in
>>>>>>>> URI.ARPA be from the "IETF Tree". That tree was deprecated after
>>>>>>>> the document was published... As it happens, there are very few
>>>>>>>> registrations in URI.ARPA, so we did not catch it and fix it
>>>>>>>> before now.
>>>>>>>> This draft updates RFC 3405 to require "permanent" scheme
>>>>>>>> registrations. The salient bit is this:
>>>>>>>> All registrations in URI.ARPA MUST be for schemes which are
>>>>>>>> permanent
>>>>>>>> registrations, as they are described in BCP 35.
>>>>>>>> I'm hoping for a quick dispatch of this, but happy to discuss.
>>>>>>>> regards,
>>>>>>>> Ted Hardie
>>>>>>>> _______________________________________________
>>>>>>>> dispatch mailing list
>>>>>>> _______________________________________________
>>>>>>> dispatch mailing list
>>>>>> --
>>>>>> Prof. Martin J. Dürst
>>>>>> Department of Intelligent Information Technology
>>>>>> College of Science and Engineering
>>>>>> Aoyama Gakuin University
>>>>>> Fuchinobe 5-1-10, Chuo-ku, Sagamihara
>>>>>> 252-5258 Japan
>>>>>> _______________________________________________
>>>>>> dispatch mailing list
>>>>> _______________________________________________
>>>>> dispatch mailing list
>>> _______________________________________________
>>> dispatch mailing list

dispatch mailing list

Prof. Martin J. Dürst
Department of Intelligent Information Technology
College of Science and Engineering
Aoyama Gakuin University
Fuchinobe 5-1-10, Chuo-ku, Sagamihara
252-5258 Japan