Diameter Straightforward-Naming Authority Pointer (S-NAPTR) Usage
RFC 6408
Document | Type |
RFC - Proposed Standard
(November 2011; No errata)
Updates RFC 3588
|
|
---|---|---|---|
Authors | Jouni Korhonen , Lionel Morand , Mark Jones | ||
Last updated | 2015-10-14 | ||
Replaces | draft-jones-dime-extended-naptr | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | Submitted to IESG for Publication | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 6408 (Proposed Standard) | |
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Dan Romascanu | ||
IESG note | Sebastien Decugis (sdecugis@freediameter.net) is the document shepherd. | ||
Send notices to | sdecugis@freediameter.net |
Internet Engineering Task Force (IETF) M. Jones Request for Comments: 6408 Bridgewater Systems Updates: 3588 J. Korhonen Category: Standards Track Nokia Siemens Networks ISSN: 2070-1721 L. Morand Orange Labs November 2011 Diameter Straightforward-Naming Authority Pointer (S-NAPTR) Usage Abstract The Diameter base protocol specifies mechanisms whereby a given realm may advertise Diameter nodes and the supported transport protocol. However, these mechanisms do not reveal the Diameter applications that each node supports. A peer outside the realm would have to perform a Diameter capability exchange with every node until it discovers one that supports the required application. This document updates RFC 3588, "Diameter Base Protocol", and describes an improvement using an extended format for the Straightforward-Naming Authority Pointer (S-NAPTR) application service tag that allows for discovery of the supported applications without doing Diameter capability exchange beforehand. 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 5741. 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/rfc6408. Jones, et al. Standards Track [Page 1] RFC 6408 Diameter S-NAPTR Usage November 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 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. Table of Contents 1. Introduction ....................................................2 2. Terminology .....................................................3 2.1. Requirements Language ......................................3 3. Extended NAPTR Service Field Format .............................3 3.1. IETF Standards Track Diameter Applications .................5 3.2. Vendor-Specific Diameter Applications ......................5 4. Backwards Compatibility .........................................5 5. Extended NAPTR-Based Diameter Peer Discovery ....................6 5.1. Examples ...................................................7 6. Usage Guidelines ................................................8 7. IANA Considerations .............................................9 7.1. IETF Diameter Application Service Tags .....................9 7.2. 3GPP Diameter Application Service Tags .....................9 7.3. WiMAX Forum Diameter Application Service Tags .............10 7.4. Vendor-Specific Diameter Application Service Tags .........10 7.5. Diameter Application Protocol Tags ........................11 8. Security Considerations ........................................11 9. Acknowledgments ................................................11 10. References ....................................................12 10.1. Normative References .....................................12 10.2. Informative References ...................................14 1. Introduction The Diameter base protocol [RFC3588] specifies three mechanisms for Diameter peer discovery. One of these involves the Diameter implementation performing a Naming Authority Pointer (NAPTR) query [RFC3403] for a server in a particular realm. These NAPTR records Jones, et al. Standards Track [Page 2] RFC 6408 Diameter S-NAPTR Usage November 2011 provide a mapping from a domain to the DNS Service Locator (SRV) record [RFC2782] or A/AAAA record [RFC1035] [RFC3596] for contacting a server with the specific transport protocol in the NAPTR services field. The extended NAPTR usage for Diameter peer discovery defined by thisShow full document text