Updated IANA Considerations for Diameter Command Code Allocations
RFC 5719, “Updated IANA Considerations for Diameter Command Code Allocations”, is a Proposed Standard document published in January 2010 by D. Romascanu, H. Tschofenig. It updates RFC 3588. It has been obsoleted by RFC 6733 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
Abstract
The Diameter base specification, described in RFC 3588, provides a number of ways to extend Diameter, with new Diameter commands (i.e., messages used by Diameter applications) and applications as the most extensive enhancements. RFC 3588 illustrates the conditions that lead to the need to define a new Diameter application or a new command code. Depending on the scope of the Diameter extension, IETF actions are necessary. Although defining new Diameter applications does not require IETF consensus, defining new Diameter commands requires IETF consensus per RFC 3588. This has led to questionable design decisions by other Standards Development Organizations, which chose to define new applications on existing commands -- rather than asking for assignment of new command codes -- for the pure purpose of avoiding bringing their specifications to the IETF. In some cases, interoperability problems were an effect of the poor design caused by overloading existing commands.
This document aligns the extensibility rules of the Diameter application with the Diameter commands, offering ways to delegate work on Diameter to other SDOs to extend Diameter in a way that does not lead to poor design choices. [STANDARDS-TRACK]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 5719 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 5718 An In-Band Data Communication Network For the MPLS Transport Profile
- RFC 5720 Routing and Addressing in Networks with Global Enterprise Recursion
- RFC 5721 POP3 Support for UTF-8
- RFC 5716 Requirements for Federated File Systems
- RFC 5715 A Framework for Loop-Free Convergence
- RFC 5723 Internet Key Exchange Protocol Version 2 Session Resumption
- RFC 5714 IP Fast Reroute Framework
- RFC 5724 URI Scheme for Global System for Mobile Communications Short Message Service