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Internet Engineering Task Force (IETF)                          B. LeibaRequest for Comments: 6924                           Huawei TechnologiesUpdates:2648                                                 April 2013Category: InformationalISSN: 2070-1721Registration of Second-Level URN Namespaces under "ietf"AbstractRFC 2648 defines the "ietf" URN namespace and a number of sub-   namespaces.RFC 3553 defines an additional sub-namespace, "params",   and creates a registry to document allocations under that.  But there   is no registry that lists, in one place, all sub-namespaces of   "ietf".  This document creates and populates such a registry, thereby   changing the mechanism defined inRFC 2648 for adding new sub-   namespaces of "ietf".Status of This Memo   This document is not an Internet Standards Track specification; it is   published for informational purposes.   This document is a product of the Internet Engineering Task Force   (IETF).  It represents the consensus of the IETF community.  It has   received public review and has been approved for publication by the   Internet Engineering Steering Group (IESG).  Not all documents   approved by the IESG are a candidate for any level of Internet   Standard; seeSection 2 of RFC 5741.   Information about the current status of this document, any errata,   and how to provide feedback on it may be obtained athttp://www.rfc-editor.org/info/rfc6924.Leiba                         Informational                     [Page 1]

RFC 6924               IETF URN Namespace Registry            April 2013Copyright Notice   Copyright (c) 2013 IETF Trust and the persons identified as the   document authors.  All rights reserved.   This document is subject toBCP 78 and the IETF Trust's Legal   Provisions Relating to IETF Documents   (http://trustee.ietf.org/license-info) in effect on the date of   publication of this document.  Please review these documents   carefully, as they describe your rights and restrictions with respect   to this document.  Code Components extracted from this document must   include Simplified BSD License text as described in Section 4.e of   the Trust Legal Provisions and are provided without warranty as   described in the Simplified BSD License.1.  Introduction   "A URN Namespace for IETF Documents" [RFC2648] defines the "ietf" URN   namespace and a number of sub-namespaces.  "An IETF URN Sub-namespace   for Registered Protocol Parameters" [RFC3553] defines an additional   sub-namespace, "params", and creates a registry to document   allocations under that.  But there is no registry that lists, in one   place, all sub-namespaces of "ietf".  This document creates and   populates such a registry, thereby changing the mechanism defined inRFC 2648 for adding new sub-namespaces of "ietf".2.  IANA Considerations   There is currently a top-level registry group called "IETF Protocol   Parameter Identifiers", which contains one registry, "IETF URN Sub-   namespace for Registered Protocol Parameters".  IANA has taken the   following three actions:   Action 1: Renamed the group "IETF Protocol Parameter Identifiers",   giving it the new name "Uniform Resource Name (URN) Namespace for   IETF Use".  The existing registry in that group remains, and its name   is unchanged.  Its registration procedure has been updated to "IETF   Review" (formerly called "IETF Consensus").   Action 2: Added a new registry to the renamed group.  The new   registry is called "IETF URN Sub-namespaces", and new registrations   will use the IETF Review policy [RFC5226], which provides for IETF   consensus in order to add a new URN namespace under "ietf".  The new   registry appears first in the group, to provide a human-friendly,   top-down resolution of the namespace hierarchy.Leiba                         Informational                     [Page 2]

RFC 6924               IETF URN Namespace Registry            April 2013   Action 3: Populated the new registry as follows:   IETF URN Sub-namespaces   Registration Procedures: IETF Review   Reference: [RFC6924]   Note: This is the Official Registry for sub-namespaces of the 'IETF'   URN Namespace.   Sub-namespace | Reference | IANA Registry Reference   --------------+-----------+-----------------------------------------   rfc           | [RFC2648] | none   fyi           | [RFC2648] | none   std           | [RFC2648] | none   bcp           | [RFC2648] | none   id            | [RFC2648] | none   mtg           | [RFC2648] | none   params        | [RFC3553] | [http://www.iana.org/assignments/params]   --------------+-----------+-----------------------------------------3.  Security Considerations   This is a procedural document and is entirely unrelated to security.4.  Acknowledgments   Alfred Hoenes noticed the absence of this registry and suggested its   creation.5.  References5.1.  Normative References   [RFC2648]  Moats, R., "A URN Namespace for IETF Documents",RFC 2648,              August 1999.   [RFC5226]  Narten, T. and H. Alvestrand, "Guidelines for Writing an              IANA Considerations Section in RFCs",BCP 26,RFC 5226,              May 2008.5.2.  Informative References   [RFC3553]  Mealling, M., Masinter, L., Hardie, T., and G. Klyne, "An              IETF URN Sub-namespace for Registered Protocol              Parameters",BCP 73,RFC 3553, June 2003.Leiba                         Informational                     [Page 3]

RFC 6924               IETF URN Namespace Registry            April 2013Author's Address   Barry Leiba   Huawei Technologies   Phone: +1 646 827 0648   EMail: barryleiba@computer.org   URI:http://internetmessagingtechnology.org/Leiba                         Informational                     [Page 4]