A YANG Model for User-Network Interface (UNI) Topologies
draft-ogondio-opsawg-uni-topology-00

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OPSAWG                                          O. Gonzalez de Dios, Ed.
Internet-Draft                                                S. Barguil
Intended status: Standards Track                              Telefonica
Expires: May 22, 2020                                              Q. Wu
                                                                  Huawei
                                                            M. Boucadair
                                                                  Orange
                                                       November 19, 2019

        A YANG Model for User-Network Interface (UNI) Topologies
                  draft-ogondio-opsawg-uni-topology-00

Abstract

   This document defines a YANG data model for representing an abstract
   view of the Service Provider network topology containing the points
   from which its services can be attached (e.g., basic connectivity,
   VPN, SDWAN).  The data model augments ietf-network model by adding
   the concept of service-attachment-points.The service-attachment-
   points are an abstraction of the points to which network services
   (such as L3 VPNs or L2 VPNs) can be attached.

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
   Task Force (IETF).  Note that other groups may also distribute
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   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
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   This Internet-Draft will expire on May 22, 2020.

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

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   publication of this document.  Please review these documents
   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.  Requirements Language . . . . . . . . . . . . . . . . . .   4
   2.  UNI Topology Model Usage  . . . . . . . . . . . . . . . . . .   4
   3.  Yang Module Structure Details . . . . . . . . . . . . . . . .   5
   4.  YANG module . . . . . . . . . . . . . . . . . . . . . . . . .   6
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
   7.  Implementation Status . . . . . . . . . . . . . . . . . . . .  10
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  10
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  10
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  11
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   The User-Network Interface (UNI) is an important architectural
   concept in many implementations and deployments of services such as
   VPNs or managed VoIP services.

   This document defines a YANG data model for representing, managing
   and controlling the User Network Interface (UNI) topology.  The data
   model augments ietf-network module [RFC8345] by adding the concept of
   service attachment points.  The service attachment points are
   abstraction of the points where network services such as L3 VPNs or
   L2 VPNs can be attached.

   This document does not make any assumption about the service provided
   by the network to the users.  VPN service is used for illustration
   purposes.

   In the context of Software-Defined Networking (SDN) [RFC7149]
   [RFC7426], the defined YANG data model in this document can be used
   to exchange information between control elements, so as to support
   VPN service provision and resource management discussed in
   [I-D.ietf-opsawg-l3sm-l3nm].  Through this model, the service
   orchestration layer can learn the capability and available
   endpoint(s) of interconnection resource of the underlying network.

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