Diameter Credit-Control Application
RFC 8506

Document Type RFC - Proposed Standard (March 2019; No errata)
Obsoletes RFC 4006
Last updated 2019-03-01
Replaces draft-bertz-dime-rfc4006bis
Stream IETF
Formats plain text pdf htmlized bibtex
Reviews
Stream WG state Submitted to IESG for Publication
Document shepherd Jouni Korhonen
Shepherd write-up Show (last changed 2018-01-03)
IESG IESG state RFC 8506 (Proposed Standard)
Consensus Boilerplate Yes
Telechat date
Responsible AD Ben Campbell
Send notices to Jouni Korhonen <jouni.nospam@gmail.com>
IANA IANA review state Version Changed - Review Needed
IANA action state RFC-Ed-Ack
Internet Engineering Task Force (IETF)                     L. Bertz, Ed.
Request for Comments: 8506                                        Sprint
Obsoletes: 4006                                           D. Dolson, Ed.
Category: Standards Track                               Y. Lifshitz, Ed.
ISSN: 2070-1721                                                 Sandvine
                                                              March 2019

                  Diameter Credit-Control Application

Abstract

   This document specifies a Diameter application that can be used to
   implement real-time credit-control for a variety of end-user services
   such as network access, Session Initiation Protocol (SIP) services,
   messaging services, and download services.  The Diameter Credit-
   Control application as defined in this document obsoletes RFC 4006,
   and it must be supported by all new Diameter Credit-Control
   application implementations.

Status of This Memo

   This is an Internet Standards Track document.

   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
   Internet Standards is available in Section 2 of RFC 7841.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   https://www.rfc-editor.org/info/rfc8506.

Bertz, et al.                Standards Track                    [Page 1]
RFC 8506           Diameter Credit-Control Application        March 2019

Copyright Notice

   Copyright (c) 2019 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
   (https://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.

Bertz, et al.                Standards Track                    [Page 2]
RFC 8506           Diameter Credit-Control Application        March 2019

Table of Contents

   1. Introduction ....................................................6
      1.1. Requirements Language ......................................7
      1.2. Terminology ................................................7
      1.3. Advertising Application Support ............................9
   2. Architecture Models .............................................9
   3. Credit-Control Messages ........................................11
      3.1. Credit-Control-Request (CCR) Command ......................11
      3.2. Credit-Control-Answer (CCA) Command .......................12
   4. Credit-Control Application Overview ............................13
      4.1. Service-Specific Rating Input and Interoperability ........14
           4.1.1. Specifying Rating Input AVPs .......................15
           4.1.2. Service-Specific Documentation .....................16
           4.1.3. Handling of Unsupported/Incorrect Rating Input .....16
           4.1.4. RADIUS Vendor-Specific Rating Attributes ...........17
   5. Session-Based Credit-Control ...................................17
      5.1. General Principles ........................................17
           5.1.1. Basic Support for Tariff Time Change ...............18
           5.1.2. Credit-Control for Multiple Services within
                  a (Sub-)Session ....................................19
      5.2. First Interrogation .......................................23
           5.2.1. First Interrogation after Authorization and
                  Authentication .....................................25
           5.2.2. First Interrogation Included with
                  Authorization Messages .............................27
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