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
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
working documents as Internet-Drafts. The list of current Internet-
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
material or to cite them other than as "work in progress."
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
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. 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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