Diameter Maintenance and Extensions (dime)
------------------------------------------

 Charter
 Last Modified: 2007-11-12

 Current Status: Active Working Group

 Chair(s):
     Hannes Tschofenig  <Hannes.Tschofenig@gmx.net>
     David Frascone  <dave@frascone.com>

 Operations and Management Area Director(s):
     Dan Romascanu  <dromasca@avaya.com>
     Ronald Bonica  <rbonica@juniper.net>

 Operations and Management Area Advisor:
     Dan Romascanu  <dromasca@avaya.com>

 Secretary(ies):
     Victor Fajardo  <vfajardo@tari.toshiba.com>

 Mailing Lists: 
     General Discussion:dime@ietf.org
     To Subscribe:      https://www1.ietf.org/mailman/listinfo/dime
     Archive:           http://www.ietf.org/mail-archive/web/dime/index.html

Description of Working Group:

The Diameter Maintanence and Extensions WG will focus on maintenance
and extensions to the Diameter protocol required to enable its use
in applications such as IP telephony and Local Area Network
authentication, authorization and accounting.

The IETF has recently completed work on the Diameter Base protocol.
There is on-going work on defining RADIUS extensions. The work done
in the DiME WG will ensure that work done in RADext is also
available for Diameter.

The immediate goals of the DiME working group are to address the
following issues:

- Maintaining and/or progressing, along the standards track, the
Diameter procotol and Diameter Applications. Every revised
document to be "maintained" requires explicit approval before
it will be accepted as a WG document.

- An informational RFC on a Diameter API.

- Diameter Application design guidelines. This document will
provide guidelines for design of new Diameter Applications.
It will detail when to consider reusing an existing
application and when to develop a new application. Interaction
between vendor & SDO specific extensions and applications
will be covered.

- Diameter QoS application. This document will develop a new
Diameter application for supporting QoS in AAA deployments.
The NSIS WG will be consulted on proper design of QoS attributes.

- Diameter URI. RFC 3588 defines an AAA URI which has some known
problems. A document revising the AAA URI as a specific Diameter
URI will be developed.

- Diameter extensions for MIPv6. This may include support for
Mobile IP extensions, like FMIP; as well as support for MIP
bootstrapping.

Additionally, AAA systems require interoperability in order to
work. Uncontrolled extensibility is not a mechanism for
interoperability. Therefore, the working group, along with the
AD, will need to evaluate any potential extensions and require
verification that the proposed extension is needed. Coordination
with other IETF working groups and other SDOs will used to
ensure this.

 Goals and Milestones:

   Nov 2007       Submit the following two Diameter Mobility documents to the 
                IESG for consideration as a Proposed Standards:* 'Diameter 
                Mobile IPv6: Support for Home Agent to Diameter Server 
                Interaction' * 'Diameter Mobile IPv6: Support for Network 
                Access Server to Diameter Server Interaction' 

   Nov 2007       Submit "Diameter API" to the IESG for consideration as an 
                Informational RFC 

   Dec 2007       Submit Revision of "Diameter Base Protocol" to the IESG for 
                consideration as a Proposed Standard 

   Dec 2007       Submit 'Diameter Application Design Guidelines' to the IESG for 
                consideration as an Informational RFC 

   Jan 2008       Submit 'Diameter QoS Application' to the IESG for consideration 
                as a Proposed Standard 


 Internet-Drafts:

Posted Revised         I-D Title   <Filename>
------ ------- --------------------------------------------
Mar 2006 Sep 2007   <draft-ietf-dime-diameter-api-04.txt>
                The Diameter API 

Jun 2006 Nov 2007   <draft-ietf-dime-mip6-split-06.txt>
                Diameter Mobile IPv6: Support for Home Agent to Diameter Server 
                Interaction 

Jun 2006 Nov 2007   <draft-ietf-dime-mip6-integrated-07.txt>
                Diameter Mobile IPv6: Support for Network Access Server to 
                Diameter Server Interaction 

Dec 2006 Nov 2007   <draft-ietf-dime-rfc3588bis-09.txt>
                Diameter Base Protocol 

Feb 2007 Nov 2007   <draft-ietf-dime-diameter-qos-02.txt>
                Protocol for Diameter Quality of Service Application 

May 2007 Nov 2007   <draft-ietf-dime-app-design-guide-05.txt>
                Diameter Applications Design Guidelines 

Jun 2007 Sep 2007   <draft-ietf-dime-qos-parameters-01.txt>
                Quality of Service Parameters for Usage with the AAA Framework 

Jul 2007 Nov 2007   <draft-ietf-dime-qos-attributes-03.txt>
                Quality of Service Attributes for Diameter 

 Request For Comments:

  None to date.