An Information Model for Basic Network Policy
draft-hares-i2rs-bnp-info-model-01

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I2RS working group                                              S. Hares
Internet-Draft                                                     Q. Wu
Intended status: Standards Track                                  Huawei
Expires: April 30, 2015                                 October 27, 2014

             An Information Model for Basic Network Policy
                   draft-hares-i2rs-bnp-info-model-01

Abstract

   This document contains the Basic Network Policy (BNP IM) Information
   Model which an instantiation and extension of the PCIM work (RFC3060,
   RFC 3460, RFC 3644) that supports both the configuration models and
   the I2RS ephemeral models.  The PCIM work contains a Policy Core
   Information Model (PCIM) (RFC3060) and the Quality of Service (QoS)
   Policy Information Model (QPIM)(RFC3644) and policy based routing.
   The PCIM work provided a framework to incorporate ACL filters, prefix
   filters, and more complex filters.  This extension to PCIM model
   incorporate ACLs, Prefix-filtering, and complex policy (match, set,
   modify, set) into the PCIM framework.  Complex policy is need by I2RS
   programmatic interface to BGP, flow specification filtering, Policy
   Based Routing (PBR), MPLS topology management, and flow specification
   filtering.

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 April 30, 2015.

Copyright Notice

   Copyright (c) 2014 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

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Internet-Draft                IM for policy                 October 2014

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
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   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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Definitions and Acronyms  . . . . . . . . . . . . . . . . . .   3
   3.  PCIM Overview . . . . . . . . . . . . . . . . . . . . . . . .   3
   4.  Top-Down yang Diagram for PCIM  . . . . . . . . . . . . . . .   5
     4.1.  Policy Set Structures . . . . . . . . . . . . . . . . . .   5
     4.2.  Policy Group Expansion for Basic Network Policy (BNP) . .   6
   5.  Example of use in BGP . . . . . . . . . . . . . . . . . . . .   9
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  10
   8.  Informative References  . . . . . . . . . . . . . . . . . . .  10
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  11

1.  Introduction

   The Interface to the Routing System (I2RS) provides read and write
   access to the information and state within the routing process within
   routing elements.  The I2RS client interacts with one or more I2RS
   agents to collect information from network routing systems.  The
   processing of collecting information at the I2RS agent may require
   the I2RS Agent to filter certain information, group pieces of
   information, or perform actions on the I2RS collected information
   based on specific I2RS policies.

   The generic policy work done in PCIM WG has been has been recast into
   I2RS work.  The PCIM work contains a Policy Core Information Model
   (PCIM) [RFC3060], Policy Core Informational Model Extensions
   [RFC3460] and the Quality of Service (QoS) Policy Information Model
   (QPIM) ([RFC3644]) The basic concept of PCIM is that there are policy
   rules which are combined into policy groups.  If nesting and
   aggregation of policy groups is necessary, the PCIM work defines a
   policy set that operates under specific rules.  Policy Groups can be
   used without using policy sets.  This concept of a policy group as an
   entity that contains a set of policy rules is also reference utilized
   by the OpenDaylight group policy project.

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