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Diameter Maintenance and Extensions

Document Charter Diameter Maintenance and Extensions WG (dime)
Title Diameter Maintenance and Extensions
Last updated 2020-03-25
State Approved
WG State Active
IESG Responsible AD Robert Wilton
Charter edit AD Robert Wilton
Send notices to (None)

The Diameter Maintenance and Extensions WG will focus on maintenance and 
extensions to the Diameter protocol required to enable its use for 
authentication, authorization, accounting, charging in network access, 
provisioning of configuration information within the network, and for 
new AAA session management uses within the extensibility rules of the 
Diameter base protocol.

The DIME working group plans to address the following items:

- Maintaining and/or progressing, along the standards track, the 
  Diameter Base protocol and Diameter Applications. This includes 
  extensions to Diameter Base protocol that can be considered as 
  enhanced features or bug fixes.

- Diameter application design guideline. This document will provide 
  guidelines for design of Diameter extensions. It will detail when to 
  consider reusing an existing application and when to develop a new 

- Protocol extensions for bulk and grouped AAA session management. The 
  aim of this work is to study and standardize a solution for handling 
  groups of AAA sessions within the Diameter base protocol context. The 
  solution would define how to identify and handle grouped AAA sessions 
  in commands and operations.

- Diameter overload control. The aim of this work is to identify the 
  limitations of the Diameter protocol level overload control provided 
  by the current Diameter Base protocol. A set of requirements will be 
  provided to define a new Diameter level overload control mechanism.

Additionally, Diameter-based systems require interoperability in order 
to work. The working group, along with the AD, will need to evaluate any 
potential extensions and require verification that the proposed 
extension is needed, and is within the extensibility rules of Diameter 
and AAA scope. Coordination with other IETF working groups and other 
SDOs (e.g. 3GPP) will be used to ensure this.