Re: [urn] NEW NAMESPACE REGISTRATION: KNX

[Michael Critchfield <[e-mail]>]

Hi Ted,
Talking about confusion, I am not quite sure if what you wrote incurs any changes to our request or worse-even Specification changes.
KNX Association would like to assign unique, permanent, location-independent names based on URNs for some resources it produces or manages.  These URNs will be constructed according to the URN syntax defined in [RFC2141<https://www.rfc-editor.org/rfc/rfc2141>].  This namespace specification is for a formal namespace to be registered according to the procedures set forth in [RFC3406<https://www.rfc-editor.org/rfc/rfc3406>].

May I kindly ask you to provide some more insight into what is missing in our request? From our understanding we need the registration, as we make extensive use of the CoAP core functionality.
Many thanks!

Best regards,
Michael Critchfield

Von: Ted Hardie <[e-mail]>
Gesendet: Mittwoch, 30. August 2023 18:00
An: Michael Critchfield <[e-mail]>
Cc: [e-mail]; Joost Demarest <[e-mail]>; André Hänel <[e-mail]>; Steven De Bruyne <[e-mail]>; W. van der Beek <[e-mail]>
Betreff: Re: [urn] NEW NAMESPACE REGISTRATION: KNX

I apologize, the formatting below came out badly.  Somehow my attempt to provide a link to RFC 8141 resulted only in it being named on a single line above the text; that seems quite odd, and I am sorry for any confusion that may cause.

regards,

Ted Hardie

On Wed, Aug 30, 2023 at 4:21 PM Ted Hardie <[e-mail]<mailto:[e-mail]>> wrote:
Hi Michael,

RFC 8141.


I retrieved the document you suggested.  First, you probably want to update the reference within it to RFC 8141 and you probably should review in particular section 4.3, which discusses using relative references with URNs.  Your document discusses "relative URNs" in a way that I don't think quite matches the RFC 8141 approach.  You may also wish to review Appendix B, which highlights changes from RFC 2141.

The document also does not appear to have a definition of the namespace-specific identifiers.  It specifies that the NID would be knx, but does not seem to provide anything else.  Is there a different document which describes their production?

regards,

Ted Hardie

On Wed, Aug 30, 2023 at 3:58 PM Michael Critchfield <[e-mail]<mailto:[e-mail]>> wrote:
Dear URN Team,
As KNX Association cvba, we would like to register the following Namespace from our KNX IoT Point API Specification with you for listing in Uniform Resource Names (URN) Namespaces (iana.org)<https://www.iana.org/assignments/urn-namespaces/urn-namespaces.xhtml>

Reference is our KNX IoT Point API Specification available on https://schema.knx.org.
Specifically, the KNX IoT Point API Specification is found under this link https://knxcloud.org/index.php/s/KNjAyyO0ojm5LSc/download.


  *   Namespace Identifier:  knx (example „urn:knx:dpa“)
  *   Version:  1
  *   Date:  2023-08-30
  *   Registrant:  KNX Association cvba, De Kleetlaan 5, B-1831 Brussels-Diegem, Belgium

     *   Joost Demarest [e-mail]<mailto:[e-mail]>

  *   Purpose:  KNX IoT Point API, as specified on https://schema.knx.org (specifically https://knxcloud.org/index.php/s/KNjAyyO0ojm5LSc/download) and future EN50090-4-4.
  *   Syntax: urn:knx:<NSS> where the syntax of "<NSS>" is specified in Section 2.2 of the URN Syntax requirements [RFC2141].
  *   Assignment: Assignment done by KNX Association through KNX Specifications.
  *   Security and Privacy:

     *   There are no additional security considerations other than those normally associated with the use and resolution of URNs in general, which are described in [RFC1737<https://www.rfc-editor.org/rfc/rfc1737>], [RFC2141<https://www.rfc-editor.org/rfc/rfc2141>], and [RFC3406<https://www.rfc-editor.org/rfc/rfc3406>].
     *   This document registers a namespace for URNs.  KNX Association may assign special meaning to certain of the characters of the Namespace Specific String (NSS) in its specifications.

  *   Interoperability: No known issues related to interoperability.
  *   Resolution: Not applicable; the "knx" namespace is not listed with a Resolution Discovery System.
  *   Documentation: KNX IoT Point API, as specified on https://schema.knx.org (specifically https://knxcloud.org/index.php/s/KNjAyyO0ojm5LSc/download) and future EN50090-4-4.
  *   Additional Information: Not applicable
  *   Revision Information: Not applicable

In the meantime, please contact me for any registration related questions in this regard.

Best regards,

MICHAEL CRITCHFIELD
ETS Product Management
[e-mail]<mailto:[e-mail]> • T [phone]

KNX Association
De Kleetlaan 5, B-1831 Brussels-Diegem • Belgium
www.knx.org<http://www.knx.org/>

[cid:image001.png@01D9DF1C.4FFCB4A0]<https://knxperience.knx.org/>


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