Bridgewater Systems

mark.jones@bridgewatersystems.com

Orange Labs

lionel.morand@orange-ftgroup.com

Operations and Management Diameter Maintenance and Extensions (DIME) 3GPP Release 8 Diameter command codes This document describes a set of new IANA Diameter Command Codes to be used in new vendor-specific Diameter applications defined for the Third Generation Partnership Project (3GPP) Evolved Packet System (EPS). 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.

The Third Generation Partnership Project (3GPP) is defining the Evolved Packet System (EPS) as part of their Release 8 architecture. As part of this architecture, the interfaces based on the Diameter protocol required the definition of two new Diameter applications: the 3GPP S6a application (vendor-specific application id: 1677251) and 3GPP S13 application (vendor-specific application id: 1677252), both defined under the 3GPP vendor-id "10415". These Diameter applications are described in .

The base Diameter specification (Section 1.4 of ) defines most of the terminology used in this document. Additionally, the terms and acronyms defined in are used in this document.

As described in , the 3GPP S6a application specifies the following command pairs: Update-Location-Request/Answer (ULR/ULA) Cancel-Location-Request/Answer (CLR/CLA) Authentication-Information-Request/ Answer (AIR/AIA) Insert-Subscriber-Data-Request/Answer (IDR/IDA) Delete-Subscriber-Data-Request/Answer (DSR/DSA) Purge-UE-Request/Answer (PUR/PUA) Reset-Request/Answer (RSR/RSA) Notify-Request/Answer (NOR/NOA) Also described in , the 3GPP S13 application specifies the following command pair: ME-Identity-Check-Request/Answer (ECR/ECA)

This section provides guidance to the Internet Assigned Numbers Authority (IANA) regarding registration of values related to the Diameter protocol, in accordance with BCP 26 .This document defines values in the namespaces that have been created and defined in the Diameter Base . The IANA Considerations section of that document details the assignment criteria. Values assigned in this document, or by future IANA action, must be coordinated within this shared namespace.

IANA is requested to allocate the following command code values:

This document describes command codes used in applications which build on top of the Diameter base protocol and the same security considerations described in are applicable to this document. No further extensions are required beyond the security mechanisms offered by .

We would like to thank the 3GPP CT4 delegates for their review and comments.

The Diameter base protocol is intended to provide an Authentication, Authorization and Accounting (AAA) framework for applications such as network access or IP mobility. Diameter is also intended to work in both local Authentication, Authorization & Accounting and roaming situations. This document specifies the message format, transport, error reporting, accounting and security services to be used by all Diameter applications. The Diameter base application needs to be supported by all Diameter implementations. [STANDARDS TRACK] 3rd Generation Partnership Project