IANA Registry for Interactive Connectivity Establishment (ICE) Options
draft-ietf-mmusic-ice-options-registry-02
The information below is for an old version of the document that is already published as an RFC.
| Document | Type | RFC Internet-Draft (mmusic WG) | |
|---|---|---|---|
| Authors | Colin Perkins , Magnus Westerlund | ||
| Last updated | 2015-10-14 (Latest revision 2011-05-13) | ||
| Replaces | draft-westerlund-mmusic-ice-options-registry | ||
| Stream | Internet Engineering Task Force (IETF) | ||
| Formats | plain text html xml htmlized pdfized bibtex | ||
| Stream | WG state | WG Document | |
| Document shepherd | (None) | ||
| IESG | IESG state | RFC 6336 (Proposed Standard) | |
| Consensus boilerplate | Unknown | ||
| Telechat date | (None) | ||
| Responsible AD | Gonzalo Camarillo | ||
| IESG note | Flemming Andreasen (fandreas@cisco.com) is the document shepherd. | ||
| Send notices to | (None) |
draft-ietf-mmusic-ice-options-registry-02
Network Working Group M. Westerlund
Internet-Draft Ericsson
Updates: 5245 (if approved) C. Perkins
Intended status: Standards Track University of Glasgow
Expires: November 13, 2011 May 12, 2011
IANA Registry for Interactive Connectivity Establishment (ICE) Options
draft-ietf-mmusic-ice-options-registry-02
Abstract
It has been identified that Interactive Connectivity Establishment
(ICE) RFC5245 is missing a registry for ICE options. This document
defines this missing IANA registry and updates RFC5245.
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
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material or to cite them other than as "work in progress."
This Internet-Draft will expire on November 13, 2011.
Copyright Notice
Copyright (c) 2011 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
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Requirements Language . . . . . . . . . . . . . . . . . . . . . 3
3. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 3
3.1. ICE Options . . . . . . . . . . . . . . . . . . . . . . . . 3
4. Security Considerations . . . . . . . . . . . . . . . . . . . . 4
5. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 4
6. References . . . . . . . . . . . . . . . . . . . . . . . . . . 4
6.1. Normative References . . . . . . . . . . . . . . . . . . . 4
6.2. Informative References . . . . . . . . . . . . . . . . . . 5
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 5
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1. Introduction
"Interactive Connectivity Establishment (ICE): A Protocol for Network
Address Translator (NAT) Traversal for Offer/Answer" [RFC5245]
defines a concept of ICE Options. However, the ICE RFC fails to
create an IANA registry for ICE options. As one ICE option is under
specification in [I-D.ietf-avtcore-ecn-for-rtp], there is now a need
to create the registry.
RFC 5245 says: "ICE provides for extensibility by allowing an offer
or answer to contain a series of tokens that identify the ICE
extensions used by that agent. If an agent supports an ICE
extension, it MUST include the token defined for that extension in
the ice-options attribute."
Thus, as future extensions are defined, these ICE options needs to be
registered with IANA to ensure non-conflicting identification. The
ICE options identifiers are used in signalling between the ICE
endpoints to negotiate extension support. RFC 5245 defines one
method of signalling these ICE options, using SDP with Offer/Answer
[RFC3264].
This document updates the ICE specification [RFC5245] to define the
"Interactive Connectivity Establishment (ICE) Options" registry.
2. Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119].
3. IANA Considerations
This document defines a registry "Interactive Connectivity
Establishment (ICE) Options" for ICE options that can be used in SDP
"ice-options" attribute or other signalling parameters carrying the
ICE options.
3.1. ICE Options
An ICE option identifier MUST fulfill the ABNF [RFC5234] syntax for
"ice-option-tag" as specified in [RFC5245]. This syntax is
reproduced here for simplicity, but the authoritative definition is
in the ICE RFC:
ice-option-tag = 1*ice-char
ice-char = ALPHA / DIGIT / "+" / "/"
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ICE options are of unlimited length by the syntax, however they are
RECOMMENDED to be no longer than 20 characters. This is to reduce
message sizes and allow for efficient parsing.
Registration of an ICE option in the "Interactive Connectivity
Establishment (ICE) Options" registry is done using the Specification
Required policy as defined in "Guidelines for Writing an IANA
Considerations Section in RFCs" [RFC5226].
A registration request MUST include the following information:
o The ICE option identifier to be registered
o Name, Email and Address of contact person for the registration
o Organization or individuals having the change control
o Short description of the ICE extension to which the option relates
o Reference(s) to the specification defining the ICE option and the
related extensions
This document registers no ICE option.
4. Security Considerations
As this document defines an IANA registry for an already existing
concept there are no new security considerations.
5. Acknowledgements
The authors would like to thank the people having reviewed the draft
and provided feedback, Flemming Andreasen, Mykyta Yevstifeyev, Amanda
Baber and Brian Carpenter.
6. References
6.1. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC5226] Narten, T. and H. Alvestrand, "Guidelines for Writing an
IANA Considerations Section in RFCs", BCP 26, RFC 5226,
May 2008.
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[RFC5234] Crocker, D. and P. Overell, "Augmented BNF for Syntax
Specifications: ABNF", STD 68, RFC 5234, January 2008.
[RFC5245] Rosenberg, J., "Interactive Connectivity Establishment
(ICE): A Protocol for Network Address Translator (NAT)
Traversal for Offer/Answer Protocols", RFC 5245,
April 2010.
6.2. Informative References
[I-D.ietf-avtcore-ecn-for-rtp]
Westerlund, M., Johansson, I., Perkins, C., and K.
Carlberg, "Explicit Congestion Notification (ECN) for RTP
over UDP", draft-ietf-avtcore-ecn-for-rtp-01 (work in
progress), March 2011.
[RFC3264] Rosenberg, J. and H. Schulzrinne, "An Offer/Answer Model
with Session Description Protocol (SDP)", RFC 3264,
June 2002.
Authors' Addresses
Magnus Westerlund
Ericsson
Farogatan 6
SE-164 80 Kista
Sweden
Phone: +46 10 714 82 87
Email: magnus.westerlund@ericsson.com
Colin Perkins
University of Glasgow
School of Computing Science
Glasgow G12 8QQ
United Kingdom
Email: csp@csperkins.org
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