Network Working Group K. Chan
Request for Comments: 3084 J. Seligson
Category: Standards Track Nortel Networks
D. Durham
Intel
S. Gai
K. McCloghrie
Cisco
S. Herzog
IPHighway
F. Reichmeyer
PFN
R. Yavatkar
Intel
A. Smith
Allegro Networks
March 2001
COPS Usage for Policy Provisioning (COPS-PR)
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2001). All Rights Reserved.
Abstract
This document describes the use of the Common Open Policy Service
(COPS) protocol for support of policy provisioning (COPS-PR). This
specification is independent of the type of policy being provisioned
(QoS, Security, etc.) but focuses on the mechanisms and conventions
used to communicate provisioned information between PDPs and PEPs.
The protocol extensions described in this document do not make any
assumptions about the policy data model being communicated, but
describe the message formats and objects that carry the modeled
policy data.
Chan, et al. Standards Track [Page 1]
RFC 3084 COPS-PR March 2001
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 [RFC-2119].
Table of Contents
Glossary........................................................... 3
1. Introduction.................................................... 3
1.1. Why COPS for Provisioning?.................................... 5
1.2. Interaction between the PEP and PDP........................... 5
2. Policy Information Base (PIB)................................... 6
2.1. Rules for Modifying and Extending PIBs........................ 7
2.2. Adding PRCs to, or deprecating from, a PIB.................... 7
2.2.1. Adding or Deprecating Attributes of a BER Encoded PRC....... 8
2.3. COPS Operations Supported for a Provisioning Instance......... 8
3. Message Content................................................. 9
3.1. Request (REQ) PEP -> PDP..................................... 9
3.2. Decision (DEC) PDP -> PEP....................................10
3.3. Report State (RPT) PEP -> PDP................................12
4. COPS-PR Protocol Objects........................................13
4.1. Complete Provisioning Instance Identifier (PRID)..............14
4.2. Prefix PRID (PPRID)...........................................15
4.3. Encoded Provisioning Instance Data (EPD)......................16
4.4. Global Provisioning Error Object (GPERR)......................21
4.5. PRC Class Provisioning Error Object (CPERR)...................22
4.6. Error PRID Object (ErrorPRID).................................23
5. COPS-PR Client-Specific Data Formats............................23
5.1. Named Decision Data...........................................23
5.2. ClientSI Request Data.........................................24
5.3. Policy Provisioning Report Data...............................24
5.3.1. Success and Failure Report-Type Data Format.................24
5.3.2. Accounting Report-Type Data Format..........................25
6. Common Operation................................................26
7. Fault Tolerance.................................................28
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