A YANG Data Model for SD-WAN VPN Service Delivery
draft-sun-opsawg-sdwan-service-model-02

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Last updated 2019-03-10
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Operations and Management Area Working Group                      Q. Sun
Internet-Draft                                                     H. Xu
Intended status: Standards Track                           China Telecom
Expires: September 11, 2019                                        B. Wu
                                                                   Q. Wu
                                                                  Huawei
                                                          March 10, 2019

           A YANG Data Model for SD-WAN VPN Service Delivery
                draft-sun-opsawg-sdwan-service-model-02

Abstract

   This document provides a YANG data model for SD-WAN VPN service.  A
   SD-WAN VPN service is a service offered by a Service Provider network
   to provide an overlay connectivity between different locations of a
   customer network or between a customer network and an external
   network, such as Internet or Private Cloud network.  The model can be
   utilized by an service orchestrator of a Service Provider to initiate
   a connectivity request.

Status of This Memo

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   This Internet-Draft will expire on September 11, 2019.

Copyright Notice

   Copyright (c) 2019 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
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents

Sun, et al.            Expires September 11, 2019               [Page 1]
Internet-Draft          SD-WAN Service YANG Model             March 2019

   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   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
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Definitions . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  High Level Overview of SD-WAN VPN Service . . . . . . . . . .   4
   3.  Service Data Model Usage  . . . . . . . . . . . . . . . . . .   6
   4.  Design of the Data Model  . . . . . . . . . . . . . . . . . .   7
     4.1.  SD-WAN VPN  . . . . . . . . . . . . . . . . . . . . . . .   8
       4.1.1.  VPN Endpoint  . . . . . . . . . . . . . . . . . . . .   8
       4.1.2.  Application Classification and Policy Map . . . . . .   8
     4.2.  Site  . . . . . . . . . . . . . . . . . . . . . . . . . .  10
   5.  Modules Tree Structure  . . . . . . . . . . . . . . . . . . .  10
   6.  YANG Modules  . . . . . . . . . . . . . . . . . . . . . . . .  14
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  40
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  40
   9.  Appendix 1: MEF SD-WAN Service Attributes Terminology Mapping  41
   10. Appendix 2: Site Augmentation and Policy Augmentation . . . .  41
     10.1.  Site Augmentation  . . . . . . . . . . . . . . . . . . .  41
     10.2.  Path Selection Policy Augmentation . . . . . . . . . . .  42
   11. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . .  42
   12. Contributors  . . . . . . . . . . . . . . . . . . . . . . . .  42
   13. References  . . . . . . . . . . . . . . . . . . . . . . . . .  43
     13.1.  Normative References . . . . . . . . . . . . . . . . . .  43
     13.2.  Informative References . . . . . . . . . . . . . . . . .  43
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  44

1.  Introduction

   By comparison with conventional PE-based VPN service defined in
   [RFC8299] and [RFC8446], the SD-WAN VPN is a type of CE-based VPN
   which uses the Internet or a PE based VPN as underlay connectivity
   service.  SD-WAN uses an overlay-based approach to provide the
   flexibility of adding, removing, or moving services without
   dependence of the underlay network.

   Besides being a CE-based overlay service, a SD-WAN VPN Service has
   the following characteristics:

   o  Hybrid WAN accesses: The CE could connect to variety of Internet
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