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[port-srv-reg] "xmp" service type and the unified IANA Service Name and Port Number Registry

Stuart Cheshire <cheshire@apple.com> Wed, 17 August 2011 22:27 UTC

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From: Stuart Cheshire <cheshire@apple.com>
Date: Wed, 17 Aug 2011 15:28:40 -0700
Message-id: <0FE4DB31-E92A-4E52-9F8D-98A9EA9CC248@apple.com>
To: Henric Bergh <henric@bergh.nu>
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Cc: port-srv-reg@ietf.org
Subject: [port-srv-reg] "xmp" service type and the unified IANA Service Name and Port Number Registry
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Henric, I'm writing in reference to this service type registration:

> From: Henric Bergh <henric@bergh.nu>
> Date: Wed, 24 Jan 2007 14:14:52 -0700
> To: <srv_type_request@dns-sd.org>
> Conversation: Service Type Request
> Subject: Service Type Request
> 
> Hello
> 
> I want to request the following service type.
> 
> Service Type: xmp
> Description: Xperientia Mobile Protocol
> Responsible person: Henric Bergh henric.bergh@xperientia.com
> Protocol description: Proprietary right now, will soon be public.
> Primary transport protocol: "_tcp" and "_udp"
> Defined TXT keys: txtvers, user, system, nodeid, desc

We recently merged the volunteer-run dns-sd.org registry and the official IANA "port numbers" registry, to make a new combined "Service Name and Port Number Registry". For more information, see:

<http://tools.ietf.org/html/draft-ietf-tsvwg-iana-ports>

While combining the two registries is overall a great move, unfortunately in the process we discovered that there were three names which got registered differently in the two separate lists, one of which is "xmp".

I'm writing to ask you the state of your "xmp" service type. Is this currently in use in your software?

If the answer is that you registered this service type for a product that never shipped, or for a product that has since been discontinued, then that's great news because it means we can resolve this name collision painlessly.

If you're still actively using the "xmp" service type in your current software, then please let us know as soon as possible, and we'll try to work out a way forward that minimises disruption to all parties.

Thanks in advance.

Stuart Cheshire, on behalf of the IANA port-srv-reg team.

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