Transport Network Slice YANG Data Model
draft-liu-teas-transport-network-slice-yang-00

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Network Working Group                                             X. Liu
Internet-Draft                                            Volta Networks
Intended status: Standards Track                             J. Tantsura
Expires: May 7, 2020                                     Apstra Networks
                                                              I. Bryskin
                                                              Individual
                                                            L. Contreras
                                                              Telefonica
                                                                   Q. Wu
                                                                  Huawei
                                                        November 4, 2019

                Transport Network Slice YANG Data Model
             draft-liu-teas-transport-network-slice-yang-00

Abstract

   This document describes a YANG data model for managing and
   controlling transport network slices.

Status of This Memo

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   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on May 7, 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
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect

Liu, et al.                Expires May 7, 2020                  [Page 1]
Internet-Draft     Transport Network Slice YANG Model      November 2019

   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
     1.2.  Tree Diagrams . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Modeling Considerations . . . . . . . . . . . . . . . . . . .   3
     2.1.  Relationships to Related Topology Models  . . . . . . . .   3
     2.2.  Network Slice with TE . . . . . . . . . . . . . . . . . .   4
     2.3.  ACTN for Network Slicing  . . . . . . . . . . . . . . . .   5
   3.  Model Applicability . . . . . . . . . . . . . . . . . . . . .   5
     3.1.  Network Slicing by Virtualization . . . . . . . . . . . .   5
     3.2.  Network Slicing by TE Overlay . . . . . . . . . . . . . .   7
   4.  Model Tree Structure  . . . . . . . . . . . . . . . . . . . .   9
   5.  YANG Module . . . . . . . . . . . . . . . . . . . . . . . . .   9
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  15
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  16
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  17
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  17
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  17
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  19
   Appendix A.  Data Tree for the Example in Section 3.1.  . . . . .  21
     A.1.  Native Topology . . . . . . . . . . . . . . . . . . . . .  21
     A.2.  Network Slice Blue  . . . . . . . . . . . . . . . . . . .  25
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  31

1.  Introduction

   This document defines a YANG [RFC7950] data model for for
   representing, managing, and controlling transport network slices.

   The defined data model is an interface between clients and providers
   for configurations and state retrievals, so as to support transport
   network slicing as a service.  Through this model, a client can learn
   the slicing capabilities and the available resources of the provider.
   A client can request or negotiate with a transport network slicing
   provider to create an instance.  The client can incrementally update
   its requirements on individual topology elements in the slice
   instance, and retrieve the operational states of these elements.
   With the help of other mechanisms and data models defined in IETF,
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