Declarative Policy Model
draft-bi-declarative-policy-02

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Network Working Group                                                     J. Bi 
Internet Draft                                                   Tsinghua Univ. 
Intended status: Standard Track                                          Q. Sun 
Expires: June 2016                                                       C. Xie 
                                                                  China Telecom 
                                                                         Y. Zha 
                                                            Huawei Technologies 
                                                                     
                                                                     
                                                              December 16, 2015 
 
                                    
                          Declarative Policy Model  
                       draft-bi-declarative-policy-02 

Abstract 

   This document describes a declarative policy model to describe the user's 
   declarative on network policy. The declarative policy model is a specific data 
   model specifies the desired state of the network system. It helps the service 
   management to model the policy (a set of states described by constraints) that 
   defines the final results of a VPN service without specifying how it is 
   monitored and managed during its lifecycle. One application for Distributed 
   Data Center (DDC) scenarios with policy enforcement is provided with details of 
   how to convert high level declarative policy into lower level configurations.  

Status of this Memo 

   This Internet-Draft is submitted in full conformance with the provisions of BCP 
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   This Internet-Draft will expire on June 16, 2015. 
 
 
 
Bi, et al.                 Expires June 16, 2016                    [Page 1] 


Internet-Draft            Declarative Policy Model               December 2015 
    

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Table of Contents 

   1. Introduction .......................................................... 2 
   2. Conventions used in this document ..................................... 3 
   3. Policy Based Service Management Framework.............................. 3 
   4. Declarative Policy Configuration Modules .............................. 4 
      4.1. Declarative Policy Framework ..................................... 4 
      4.2. Declarative Policy Model ......................................... 5 
   5. Declarative Policy Applications in DDC services ...................... 14 
      5.1. Policy Based Traffic Steering Case study ........................ 14 
      5.2. Declarative Policy Enforcement .................................. 19 
   6. Security Considerations .............................................. 20 
   7. IANA Considerations .................................................. 20 
   8. Acknowledgments ...................................................... 21 
   9. References............................................................ 21 
      9.1. Normative References ............................................ 21 
      9.2. Informative References .......................................... 21 
    
1. Introduction 

   In order to support emerging DDC service with VPN connection as well as new 
   services, it brings new requirements on Policy based service management for 
   service providers. Instead of manual configuration of the network 
   infrastructures, policy based service management is achieved by using policies 
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