Declarative Policy Model
draft-bi-declarative-policy-00

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Network Working Group                                           J. Bi       
Internet Draft                                         Tsinghua Univ.             
Intended status: Standard Track                                Q. Sun      
Expires: May 2016                                              C. Xie       
                                                        China Telecom            
                                                     November 4, 2015 
 
                                    
                        Declarative Policy Model  
                     draft-bi-declarative-policy-00 

Abstract 

   This document describes a declarative model for traffic steering 
   policies in Distributed Data Center (DDC) scenarios. The policy 
   model is a specific data model for traffic steering using VPN 
   technology. It helps the service management in Simplified Use of 
   Policy Abstractions (SUPA) to model the policy (a set of 
   constraints and rules) that defines how a VPN service is monitored 
   by bandwidth and managed during its lifecycle. 

 

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   This Internet-Draft will expire on April 30, 2015. 
 
 
 
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Copyright Notice 

   Copyright (c) 2014 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 
   Provisions Relating to IETF Documents 
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   warranty as described in the Simplified BSD License. 

Table of Contents 

    
   1. Introduction .................................................2 
   2. Conventions used in this document ............................3 
   3. Policy Based Service Management Framework ....................3 
   4. declarative Based Policy Configuration Modules ...............4 
      4.1. Declarative Based Policy Framework ......................4 
      4.2. Declarative Based Policy Model ..........................6 
   5. declarative Policy Applications in DDC services ..............9 
      5.1. Policy Based Traffic Steering Case study ................9 
      5.2. Declarative Based Policy Enforcement ...................11 
   6. Security Considerations .....................................13 
   7. IANA Considerations .........................................13 
   8. Acknowledgments .............................................13 
   9. References ..................................................13 
      9.1. Normative References ...................................13 
      9.2. Informative References .................................14 
    
1. Introduction 

   In order to support the DDC service with VPN connection as well as 
   new services, it brings new requirements for both network 
   providers and service providers. Rapid uptake of new services 
   requires dynamic service provisioning capabilities in the service 
   management. This is achieved using policies that can be created by 
   the operators once and the service management refers to these 
   policies to infer how a given service needs to be provisioned 
   considering the current state of the network.   

 
 
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   In SUPA framework, network policy is a predefined rule or a set of 
   rules that the service management use to map the service to the 
   lower level network infrastructures.  

   Meanwhile, DDC service which is mainly relied on VPN [RFC4110] 
   needs policy based management and controlling capability from the 
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