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rfc:rfc7936

Internet Engineering Task Force (IETF) T. Hardie Request for Comments: 7936 July 2016 Updates: 6455 Category: Standards Track ISSN: 2070-1721

                   Clarifying Registry Procedures
            for the WebSocket Subprotocol Name Registry

Abstract

 This document clarifies the instructions to IANA for the subprotocol
 registry set up for WebSockets in RFC 6455.

Status of This Memo

 This is an Internet Standards Track document.
 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).  Further information on
 Internet Standards is available in Section 2 of RFC 7841.
 Information about the current status of this document, any errata,
 and how to provide feedback on it may be obtained at
 http://www.rfc-editor.org/info/rfc7936.

Copyright Notice

 Copyright (c) 2016 IETF Trust and the persons identified as the
 document authors.  All rights reserved.
 This document is subject to BCP 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.

Hardie Standards Track [Page 1] RFC 7936 IANA Clarification of RFC 6455 July 2016

Table of Contents

 1. Introduction ................................................... 2
 2. Clarified Instructions ......................................... 2
 3. Security Considerations ........................................ 2
 4. IANA Considerations ............................................ 2
 5. Normative References ........................................... 3
 Acknowledgements .................................................. 3
 Author's Address .................................................. 3

1. Introduction

 Section 11.5 of [RFC6455] sets up a WebSocket Subprotocol Name
 Registry at IANA and directs IANA to use First Come First Serve
 registration procedures as set out in [RFC5226].  The reuse of this
 registry by other protocols has indicated that some clarification of
 the instructions to IANA would be useful.

2. Clarified Instructions

 The tokens registered in the WebSocket Subprotocol Name Registry
 created by Section 11.5 of RFC 6455 are matched using case-sensitive
 string match.  IANA is, however, instructed to decline registrations
 in the registry which differ only as to case, in order to minimize
 potential confusion among different registered versions.  For other
 useful advice on avoiding collision, registrants are encouraged to
 consult the non-normative Section 1.9 of RFC 6455.

3. Security Considerations

 This document describes an update to registry policy, not a protocol.

4. IANA Considerations

 This document is, in its entirety, a clarification of the registry
 policy for the WebSocket Subprotocol Name Registry.  As part of this
 clarification, IANA has listed both this document and RFC 6455 as
 references for the WebSocket Subprotocol Name Registry.  In addition,
 IANA has included the following note under the registry's
 Registration Procedures: "Please see Section 2 of RFC 7936, which
 clarifies that registrations which differ from existing registrations
 only by case will be refused."

Hardie Standards Track [Page 2] RFC 7936 IANA Clarification of RFC 6455 July 2016

5. Normative References

 [RFC6455]  Fette, I. and A. Melnikov, "The WebSocket Protocol",
            RFC 6455, DOI 10.17487/RFC6455, December 2011,
            <http://www.rfc-editor.org/info/rfc6455>.
 [RFC5226]  Narten, T. and H. Alvestrand, "Guidelines for Writing an
            IANA Considerations Section in RFCs", BCP 26, RFC 5226,
            DOI 10.17487/RFC5226, May 2008,
            <http://www.rfc-editor.org/info/rfc5226>.

Acknowledgements

 Takeshi Yoshino, Anne Van Kesteren, Julian Reshke, Barry Leiba, and
 Alexey Melnikov reviewed this update.  Harald Alvestrand acted as
 document shepherd.

Author's Address

 Ted Hardie
 Email: ted.ietf@gmail.com

Hardie Standards Track [Page 3]

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