Re: [core] Link-format to DNS-SD mapping: URI rt values

Peter Saint-Andre <stpeter@mozilla.com> Tue, 17 July 2018 21:04 UTC

Return-Path: <stpeter@mozilla.com>
X-Original-To: core@ietfa.amsl.com
Delivered-To: core@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id ECE44130DEB for <core@ietfa.amsl.com>; Tue, 17 Jul 2018 14:04:25 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.001
X-Spam-Level:
X-Spam-Status: No, score=-2.001 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=mozilla.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 PZm_PUIF91pg for <core@ietfa.amsl.com>; Tue, 17 Jul 2018 14:04:22 -0700 (PDT)
Received: from mail-io0-x22e.google.com (mail-io0-x22e.google.com [IPv6:2607:f8b0:4001:c06::22e]) (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 0D2C2131028 for <core@ietf.org>; Tue, 17 Jul 2018 14:04:22 -0700 (PDT)
Received: by mail-io0-x22e.google.com with SMTP id l7-v6so2229763ioj.1 for <core@ietf.org>; Tue, 17 Jul 2018 14:04:21 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mozilla.com; s=google; h=subject:to:cc:references:from:openpgp:autocrypt:message-id:date :user-agent:mime-version:in-reply-to; bh=HdoRhADjuYyO4U73lN1zzxDRJllJSSqYlvAdZOVxVCY=; b=a0pzxztvvELMLr6s7oifrFLmPrdBHITWlOI42aJwJyqKZCFGZexv8ZI6gPU+BBFbLq 32OM7pEhrNgEsnyUEwhnCrRyC6j9t7kHmUqb/kRVarlb79oVh1qJUuBl0iRmoWGlBQN2 w7FRvuio9dGJrHy2MDb6P5REYYJCrruugqOWc=
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:openpgp:autocrypt :message-id:date:user-agent:mime-version:in-reply-to; bh=HdoRhADjuYyO4U73lN1zzxDRJllJSSqYlvAdZOVxVCY=; b=ZsCUNoETZx/55cpAKO36YKtZuIaWmtx8qZjAYidl2tR0TGeo17iTaINIkebxDani1O A+KxaIHI6XfioA/qVtuBFmxRlXW4s8UvZB1Twv/3V5HKNOmFd2ur7SjFCwfpAGK6K70U p9OtH5CJQ75kIP0qL9g4JvaAVq0HvL8vUgWQCcGpJDYDOjkuYZLzxE2jpaMs5lgpjEIM uSQAokUrnHfLJ3CvpdeSJcZmm5BVBje/lOQxvBbHG9YOokRVAzGP4RvkBdgVJfj/gzD7 QAK0BQb02nbRavjPxlEwSiWVlWckLoIXAH9kkCBx7MNJfq4zNjxeraj4+fGlTswTCQGM ZuWQ==
X-Gm-Message-State: AOUpUlEqUFAFTRvBmSlkhATfgO0PADQL+wUO5vgSZrszM00YVxVIiWgY k2WJU0ia2sj2Cc7YTYrniyXIlqlZwik=
X-Google-Smtp-Source: AAOMgpfEUWsaNxR3ZzxmdxQHcnlYSTeO7z6slRljltBB+7ll/U65NPqfmauBSVJWjpMPvjq2FzxCtg==
X-Received: by 2002:a6b:e403:: with SMTP id u3-v6mr2760341iog.131.1531861461448; Tue, 17 Jul 2018 14:04:21 -0700 (PDT)
Received: from dragon.local ([76.25.3.152]) by smtp.gmail.com with ESMTPSA id h75-v6sm960840ioh.50.2018.07.17.14.04.20 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 17 Jul 2018 14:04:20 -0700 (PDT)
To: Michael Koster <michaeljohnkoster@gmail.com>
Cc: Dave Thaler <dthaler=40microsoft.com@dmarc.ietf.org>, "core@ietf.org" <core@ietf.org>
References: <DM5PR2101MB0805A11EFC50C8329FD31FECA35D0@DM5PR2101MB0805.namprd21.prod.outlook.com> <132BF0EA-F284-4857-BE93-2A04608D828A@gmail.com> <db98effa-398c-a1e0-f6d1-8732c6e99e0e@mozilla.com> <D79DD063-F6B4-4995-9FBB-266976EA7E6F@gmail.com>
From: Peter Saint-Andre <stpeter@mozilla.com>
Openpgp: preference=signencrypt
Autocrypt: addr=stpeter@mozilla.com; prefer-encrypt=mutual; keydata= xsFNBFonEf4BEADvZ+RGsJoOyZaw2rKedB9pBb2nNXVGgymNS9+FAL/9SsfcrKaGYSiWEz7P Lvc97hWH3LACFAHvnzoktv+4IWHjItvhdi9kUQ3Gcbahe55OcdZuSXXH3w5cHF0rKz9aYRpN jENqXM5dA8x4zIymJraqYvHlFsuuPB8rcRIV9SKsvcy14w9iRqu770NjXfE/aIsyRwwmTPiU FQ0fOSDPA/x2DLjed/GYHem90C5vF4Er9InMqH5KAMLnjIYZ9DbPx5c5EME4zW/d648HOvPB bm+roZs4JTHBhjlrTtzDDpMcxHq1e8YPvSdDLPvgFXDcTD4+ztkdO5rvDkbc61QFcLlidU8H 3KBiOVMA/5Rgl4lcWZzGfJBnwvSrKVPsxzpuCYDg01Y/7TH4AuVkv5Na6jKymJegjxEuJUNw CBzAhxOb0H9dXROkvxnRdYS9f0slcNDBrq/9h9dIBOqLhoIvhu+Bhz6L/NP5VunQWsEleGaO 3gxGh9PP/LMyjweDjPz74+7pbyOW0b5VnIDFcvCTJKP0sBJjRU/uqmQ25ckozuYrml0kqVGp EfxhSKVqCFoAS4Q7ux99yT4re2X1kmlHh3xntzmOaRpcZsS8mJEnVyhJZBMOhqE280m80ZbS CYghd2K0EIuRbexd+lfdjZ+t8ROMMdW5L51CJVigF0anyYTcAwARAQABzSdQZXRlciBTYWlu dC1BbmRyZSA8c3RwZXRlckBtb3ppbGxhLmNvbT7CwZQEEwEIAD4WIQQ1VSPTuPTvyWCdvvRl YYwYf2gUqQUCWicR/gIbIwUJCWYBgAULCQgHAgYVCAkKCwIEFgIDAQIeAQIXgAAKCRBlYYwY f2gUqdaREAChG8qU1853mP0sv2Mersns8TLG1ztgoKHvMXFlMUpNz6Oi6CjjaMNFhP7eUY4T D43+yQs7f4qCkOAPWuuqO8FbNWQ+yUoVkqF8NUrrVkZUlZ1VZBMQHNlaEwwu1CGoHsLoRohP SiZ0hpmGTWB3V6cDDK4KN6nl610WJbzE9LeKY1AxtePdJi2KM281U0Fz8ntij1jWu0gF2xU4 Sez46JDogHLWKgd0srauhcCVzZjAhiWrXp1+ryzSWYaZO8Kh8SnF1f4o6jtYikMqkxUaI5nX wvD3kNX4AMSkCAZfG7Jcfj/SLDojTcREgO87g7B9bcOOsHN4lj3lHoFV0aXpgPmjfIvAjJHu fHkXZAQAH8w0u9bgJqRn703+A4NPfLopnjegyhlNi7fQ3cMQV1H7Oj7WrB/pCcprx+1u/6Uq oTtDwWh1U5uVthVAI0QojpNWR08zABDX19TlGtVoeygaQV3CAEolxTiYQtCfVavUzUplCZ/t 3v4YiRov+NylflJd+1akyOs1IAgARf444BnoH1fotkpfXNOpp9wUXXwsQcFRdP7vpMkSCkc0 sxPNTVX3ei0QImp4NsrFdaep7LV3zEb3wkAp6KE5Qno4hVVEypULbvB0G6twNZbeRfcs2Rjp jnPb2fofvg2WhAKB20dnRfIfK8OKTD/P+JDcauJANjmekM7BTQRaJxH+ARAApPwkbOTChAQu jMvteb/xcwuL5JZElmLxIqvJhqybV7JknM+3ATyN0CTYQFvPTgIrhpk4zSn0A6pEePdK8mKK 5/aHyd7pr7rLEi1sI/X3UE8ld/E83MExksKrYbs0UX1wSQwYXU6g64KicnuP2Abqg+8wrQ18 1nPcZci9jJI75XVPnTdUpZD5aaQWGp7IJ06NTbiOk30I50ORfulgKoe4m3UfsMALFxIx3pJk oy76xC2tjxYGf+4Uq1M0iK3Wy655GrcwXq/5ieODNUcAZzvK5hsUVRodBq0Lq3g1ivQF4ba7 RQayDzlW6XgoeU49xnCr9XdZYnTnj4iaPmr2NtY6AacBwRz+bJsyugeSyGgHsnVGyUSMk8YN wZHvUykMjH21LLzIUX5NFlcumLUXDOECELCJwewui4W81sI5Sq/WDJet+iJwwylUX22TSulG VwDS+j66TLZpk1hEwPanGLwFBSosafqSNBMDVWegKWvZZVyoNHIaaQbrTIoAwuAGvdVncSQz ttC6KkaFlAtlZt3+eUFWlMUOQ9jxQKTWymyliWKrx+S6O1cr4hwVRbg7RQkpfA8E2Loa13oO vRSQy/M2YBRZzRecTKY6nslJo6FWTftpGO7cNcvbmQ6I++5cBG1B1eNy2RFGJUzGh1vlYo51 pdfSg0U1oPHBPCHNvPYCJ7UAEQEAAcLBfAQYAQgAJhYhBDVVI9O49O/JYJ2+9GVhjBh/aBSp BQJaJxH+AhsMBQkJZgGAAAoJEGVhjBh/aBSpAw0P/1tEcEaZUO1uLenNtqysi3mQ6qAHYALR Df3p2z/RBKRVx0DJlzDfDvJ2R/GRwoo+vyCviecuG2RNKmJbf1vSm/QTtbQMUjwut9mx6KCY CyKwniqdhaMBmjCfV2DB2MxxZLYMtDfx/2mY7vzAci7AkjC+RkSUByMEOkyscUydKC/ETdf9 tvI8GhTY/8Q7JSylS3lQA5pMUHiIf+KpSmqKZeBPkGc7nSKM1w1UKUvFAsyyVsiG6A/hWrTr 7tTQAl7YfjtOGE8n4IKGktvrT99bbh9wdWKZ5FdHUN9hx2Q8VP8+0lR1CH2laVFbEwCOv1vM W4cgQDLxwwpo1iOTdHBVtQDxlQ9hPMKVlB1KP9KjchxuiLc24wLmCjP3pDMml4LQxOYB34Eq cgPZ3uHvJZG309sb2wTMTWaXobWNI++ZrsRD5GTmuzF3kkx3krtrq6HI5NSaemxK6MTDTjDN Rj/OwTl0yU35eJXuuryB20GFOSUsxiw00I2hMGQ1Cy9L/+IW6Dvotd8O3LmKh2tFArzXaKLx /rZyGNurS/Go5YjHp8wdJOs7Ka2p1U31js24PMWO6hf6hIiY2WRUsnE6xZNhvBTgKOY6u0KT V6hTevFqEw7OAZDCWUoE2Ob2/oHGZCCMW5SLAMgp7eihF0kGf2S2CmpIFYXGb61hAD8SqSY7 Fn7V
Message-ID: <56f4ed81-5f87-86d9-5acc-f7864a788f06@mozilla.com>
Date: Tue, 17 Jul 2018 15:04:19 -0600
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:52.0) Gecko/20100101 Thunderbird/52.8.0
MIME-Version: 1.0
In-Reply-To: <D79DD063-F6B4-4995-9FBB-266976EA7E6F@gmail.com>
Content-Type: multipart/signed; micalg="pgp-sha256"; protocol="application/pgp-signature"; boundary="J0AQWdTtKzeIGwTg8zxz3Gw1NXBDNQUx7"
Archived-At: <https://mailarchive.ietf.org/arch/msg/core/PpEUeeLFPyXyrTSkiH7Jaw6bZYg>
Subject: Re: [core] Link-format to DNS-SD mapping: URI rt values
X-BeenThere: core@ietf.org
X-Mailman-Version: 2.1.27
Precedence: list
List-Id: "Constrained RESTful Environments \(CoRE\) Working Group list" <core.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/core>, <mailto:core-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/core/>
List-Post: <mailto:core@ietf.org>
List-Help: <mailto:core-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/core>, <mailto:core-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 17 Jul 2018 21:04:26 -0000

On 7/17/18 2:55 PM, Michael Koster wrote:
> Yes obviously... My example assumes that one has a URN namespace. 
> 
> Is that an unreasonabe assumption?

Well, it depends on what kind of organizations we're talking about. When
I worked at Cisco, I saw developers creating urn:cisco:foo URNs and you
can't just mint your namespaces, so that was bad.

> Many of the organizations I work with have or plan to have URN namespaces.

Excellent. Please point them to RFC 8141 for the updated definition of
URNs and the updated registration process for URN namespaces... :-)

https://tools.ietf.org/html/rfc8141

Peter

(team lead, URN namespace expert review team)



> 
> Best regards,
> 
> Michael
> 
>> On Jul 17, 2018, at 4:31 PM, Peter Saint-Andre <stpeter@mozilla.com> wrote:
>>
>> On 7/16/18 3:30 PM, Michael Koster wrote:
>>> Or the URN form may also be used, e.g. "rt=urn:myorg:sensor:temperature" which can enable an organization to manage its own namespace
>>
>> Don't do that. You can't just create your own URN namespaces:
>>
>> https://tools.ietf.org/html/rfc8141#section-5
>>
>> It's better to use URIs with the domain name of your organization, or
>> use the urn:example namespace:
>>
>> https://tools.ietf.org/html/rfc6963
>>
>> Peter
>>
>>
>