Framework for Policy Usage Feedback for Common Open Policy Service with Policy Provisioning (COPS-PR)
RFC 3483

Document Type RFC - Informational (March 2003; No errata)
Last updated 2015-10-14
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IESG IESG state RFC 3483 (Informational)
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Responsible AD Bert Wijnen
IESG note Published as RFC 3483
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Network Working Group                                         D. Rawlins
Request for Comments: 3483                                      WorldCom
Category: Informational                                      A. Kulkarni
                                                                   Intel
                                                            M. Bokaemper
                                                        Juniper Networks
                                                                 K. Chan
                                                         Nortel Networks
                                                              March 2003

  Framework for Policy Usage Feedback for Common Open Policy Service
                  with Policy Provisioning (COPS-PR)

Status of this Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2003).  All Rights Reserved.

Abstract

   Common Open Policy Services (COPS) Protocol (RFC 2748), defines the
   capability of reporting information to the Policy Decision Point
   (PDP).  The types of report information are success, failure and
   accounting of an installed state.  This document focuses on the COPS
   Report Type of Accounting and the necessary framework for the
   monitoring and reporting of usage feedback for an installed state.

Conventions used in this document

   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 [RFC2119].

Rawlins, et al.              Informational                      [Page 1]
RFC 3483                COPS Feedback Framework               March 2003

Table of Contents

   Glossary........................................................... 2
   1  Introduction.................................................... 2
   2  Overview........................................................ 3
   3  Requirements for Normal Operations.............................. 3
   4  Periodic Nature of Policy Usage Feedback........................ 4
      4.1 Reporting Intervals......................................... 4
   5  Suspension, Resumption and Halting of Usage Monitoring and
      Reporting....................................................... 5
   6  Solicited Feedback.............................................. 5
   7  Usage reports on shared objects................................. 5
   8  Context......................................................... 6
   9  Delete Request States........................................... 7
   10 Failover........................................................ 7
   11 Security Considerations......................................... 7
   12 References...................................................... 8
      12.1 Normative References....................................... 8
      12.2 Informative References..................................... 8
   13 Authors' Addresses.............................................. 9
   14 Full Copyright Statement........................................10

Glossary

   COPS - Common Open Policy Service.  See [RFC2748].
   COPS-PR - COPS Usage for Policy Provisioning.  See [RFC3084].
   PDP - Policy Decision Point.  See [RFC2753].
   PEP - Policy Enforcement Point.  See [RFC2753].
   PIB - Policy Information Base.  The database of policy information.
   PRC - Provisioning Class.  A type of policy data.
   PRI - Provisioning Instance.  An instance of a PRC.
   QoS - Quality of Service.

1 Introduction

   Policy usage reported by the PEP makes a richer set of information
   available to the PDP for decision-making.  This feedback on policy
   usage can impact future decisions made by the PDP and the resulting
   policy installed by the PDP at the PEP.  For example, a PDP making
   policy for a SIP signaled multimedia session may need to base the
   decision in part on usage information related to previously installed
   QoS policy decisions.  Furthermore, the PDP may coordinate this usage
   information with other external systems to determine the future
   policy such as the case with the PDP coordinating multimedia session
   QoS and clearinghouse authorizations [SIP-AAA-QOS].

Rawlins, et al.              Informational                      [Page 2]
RFC 3483                COPS Feedback Framework               March 2003

   The scope of this document is to describe the framework for policy
   usage monitored and reported by the PEP and collected at the PDP.
   The charging, rating and billing models, as well as other accounting
   or statistics gathering events, detectable by the PDP are beyond the
   scope of this framework.

2 Overview

   There are three main aspects to define policies for usage feedback:

   -  which objects are monitored
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