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[core] Does one have to use registered resource type (rt) values?

Christer Holmberg <christer.holmberg@ericsson.com> Tue, 15 October 2019 08:11 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: "core@ietf.org" <core@ietf.org>
Thread-Topic: Does one have to use registered resource type (rt) values?
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Date: Tue, 15 Oct 2019 08:11:09 +0000
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Subject: [core] Does one have to use registered resource type (rt) values?
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Hi,

There is an IANA registry for resource type (rt) values.

QUESTION: Does one have to use registered rt values, or can one use non-registered values? Section 3.1 of RFC 6690 does mention the registry. But, the text also talks values with “application-specific semantics”, which suggests that one could use non-registered values.

IRFC 6690 also use both “temperature-c” and “light-lux”, but none of them are registered. I DO realize these are just example values, which would justify the fact that they are not registered. But it adds to the confusion whether registration is required.

Regards,

Christer

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