Diameter Applications Design Guidelines
RFC 7423
Document | Type |
RFC - Best Current Practice
(November 2014; No errata)
Also known as BCP 193
|
|
---|---|---|---|
Authors | Lionel Morand , Victor Fajardo , Hannes Tschofenig | ||
Last updated | 2015-10-14 | ||
Replaces | draft-fajardo-dime-app-design-guide | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | Submitted to IESG for Publication | |
Document shepherd | Jouni Korhonen | ||
Shepherd write-up | Show (last changed 2014-04-18) | ||
IESG | IESG state | RFC 7423 (Best Current Practice) | |
Consensus Boilerplate | Yes | ||
Telechat date | |||
Responsible AD | BenoƮt Claise | ||
Send notices to | (None) | ||
IANA | IANA review state | Version Changed - Review Needed | |
IANA action state | No IANA Actions |
Internet Engineering Task Force (IETF) L. Morand, Ed. Request for Comments: 7423 Orange Labs BCP: 193 V. Fajardo Category: Best Current Practice Fluke Networks ISSN: 2070-1721 H. Tschofenig November 2014 Diameter Applications Design Guidelines Abstract The Diameter base protocol provides facilities for protocol extensibility enabling the definition of new Diameter applications or modification of existing applications. This document is a companion document to the Diameter base protocol that further explains and clarifies the rules to extend Diameter. Furthermore, this document provides guidelines to Diameter application designers reusing/ defining Diameter applications or creating generic Diameter extensions. Status of This Memo This memo documents an Internet Best Current Practice. 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 BCPs 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/rfc7423. Morand, et al. Best Current Practice [Page 1] RFC 7423 Diameter Applications Design Guidelines November 2014 Copyright Notice Copyright (c) 2014 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. This document may contain material from IETF Documents or IETF Contributions published or made publicly available before November 10, 2008. The person(s) controlling the copyright in some of this material may not have granted the IETF Trust the right to allow modifications of such material outside the IETF Standards Process. Without obtaining an adequate license from the person(s) controlling the copyright in such materials, this document may not be modified outside the IETF Standards Process, and derivative works of it may not be created outside the IETF Standards Process, except to format it for publication as an RFC or to translate it into languages other than English. Morand, et al. Best Current Practice [Page 2] RFC 7423 Diameter Applications Design Guidelines November 2014 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 4 2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 5 3. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4. Reusing Existing Diameter Applications . . . . . . . . . . . 6 4.1. Adding a New Command . . . . . . . . . . . . . . . . . . 7 4.2. Deleting an Existing Command . . . . . . . . . . . . . . 8 4.3. Reusing Existing Commands . . . . . . . . . . . . . . . . 8 4.3.1. Adding AVPs to a Command . . . . . . . . . . . . . . 8 4.3.2. Deleting AVPs from a Command . . . . . . . . . . . . 10 4.3.3. Changing the Flag Settings of AVP in Existing Commands . . . . . . . . . . . . . . . . . . . . . . 11 4.4. Reusing Existing AVPs . . . . . . . . . . . . . . . . . . 11 4.4.1. Setting of the AVP Flags . . . . . . . . . . . . . . 11 4.4.2. Reuse of AVP of Type Enumerated . . . . . . . . . . . 12 5. Defining New Diameter Applications . . . . . . . . . . . . . 12 5.1. Introduction . . . . . . . . . . . . . . . . . . . . . . 12 5.2. Defining New Commands . . . . . . . . . . . . . . . . . . 12 5.3. Use of Application Id in a Message . . . . . . . . . . . 13 5.4. Application-Specific Session State Machines . . . . . . . 14 5.5. Session-Id AVP and Session Management . . . . . . . . . . 14 5.6. Use of Enumerated Type AVPs . . . . . . . . . . . . . . . 15 5.7. Application-Specific Message Routing . . . . . . . . . . 17 5.8. Translation Agents . . . . . . . . . . . . . . . . . . . 18Show full document text