Diameter Credit-Control Application
draft-ietf-dime-rfc4006bis-07

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Network Working Group                                      L. Bertz, Ed.
Internet-Draft                                                    Sprint
Obsoletes: 4006 (if approved)                             D. Dolson, Ed.
Intended status: Standards Track                        Y. Lifshitz, Ed.
Expires: September 21, 2018                                     Sandvine
                                                          March 20, 2018

                  Diameter Credit-Control Application
                     draft-ietf-dime-rfc4006bis-07

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 RFC4006,
   and it must be supported by all new Diameter Credit-Control
   Application implementations.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on September 21, 2018.

Copyright Notice

   Copyright (c) 2018 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
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   carefully, as they describe your rights and restrictions with respect

Bertz, et al.          Expires September 21, 2018               [Page 1]
Internet-Draft     Diameter Credit-Control Application        March 2018

   to this document.  Code Components extracted from this document must
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   This document may contain material from IETF Documents or IETF
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   than English.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   5
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   6
     1.2.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   6
     1.3.  Advertising Application Support . . . . . . . . . . . . .   8
   2.  Architecture Models . . . . . . . . . . . . . . . . . . . . .   8
   3.  Credit-Control Messages . . . . . . . . . . . . . . . . . . .  10
     3.1.  Credit-Control-Request (CCR) Command  . . . . . . . . . .  10
     3.2.  Credit-Control-Answer (CCA) Command . . . . . . . . . . .  11
   4.  Credit-Control Application Overview . . . . . . . . . . . . .  12
     4.1.  Service-Specific Rating Input and Interoperability  . . .  14
       4.1.1.  Specifying Rating Input AVPs  . . . . . . . . . . . .  14
       4.1.2.  Service-Specific Documentation  . . . . . . . . . . .  15
       4.1.3.  Handling of Unsupported/Incorrect Rating Input  . . .  16
       4.1.4.  RADIUS Vendor-Specific Rating Attributes  . . . . . .  16
   5.  Session Based Credit-Control  . . . . . . . . . . . . . . . .  16
     5.1.  General Principles  . . . . . . . . . . . . . . . . . . .  16
       5.1.1.  Basic Tariff-Time Change Support  . . . . . . . . . .  17
       5.1.2.  Credit-Control for Multiple Services within a
               (sub-)Session . . . . . . . . . . . . . . . . . . . .  18
     5.2.  First Interrogation . . . . . . . . . . . . . . . . . . .  22
       5.2.1.  First Interrogation after Authorization and
               Authentication  . . . . . . . . . . . . . . . . . . .  24
       5.2.2.  Authorization Messages for First Interrogation  . . .  25
     5.3.  Intermediate Interrogation  . . . . . . . . . . . . . . .  28