IETF Definition of Transport Slice
draft-nsdt-teas-transport-slice-definition-02

Document Type Active Internet-Draft (individual)
Last updated 2020-04-21
Stream (None)
Intended RFC status (None)
Formats plain text xml pdf htmlized (tools) htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
teas                                                            R. Rokui
Internet-Draft                                                     Nokia
Intended status: Informational                                  S. Homma
Expires: October 23, 2020                                            NTT
                                                            K. Makhijani
                                                               Futurewei
                                                           LM. Contreras
                                                              Telefonica
                                                          April 21, 2020

                   IETF Definition of Transport Slice
             draft-nsdt-teas-transport-slice-definition-02

Abstract

   This document describes the definition of a slice in the transport
   networks and its characteristics.  The purpose here is to bring
   clarity and a common understanding of the transport slice concept and
   describe related terms and their meaning.  It explains how transport
   slices can be used in end to end network slices, or independently.

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 October 23, 2020.

Copyright Notice

   Copyright (c) 2020 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

Rokui, et al.           Expires October 23, 2020                [Page 1]
Internet-Draft    draft-nsdt-transport-slice-definition       April 2020

   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
   2.  Terms and Abbreviations . . . . . . . . . . . . . . . . . . .   3
   3.  Definition and Scope of Transport slice . . . . . . . . . . .   4
   4.  Transport Slice System Characteristics  . . . . . . . . . . .   4
     4.1.  Service Level Objectives on Transport Slice . . . . . . .   4
       4.1.1.  Isolation discussion  . . . . . . . . . . . . . . . .   6
     4.2.  Endpoint Variation  . . . . . . . . . . . . . . . . . . .   8
       4.2.1.  Types of Endpoints  . . . . . . . . . . . . . . . . .   8
       4.2.2.  Connectivity Patterns . . . . . . . . . . . . . . . .   8
     4.3.  Vertical Transport Slice  . . . . . . . . . . . . . . . .   9
     4.4.  Horizontal Composition of Transport slice . . . . . . . .  10
   5.  Transport Slice Structure . . . . . . . . . . . . . . . . . .  10
     5.1.  Stakeholders  . . . . . . . . . . . . . . . . . . . . . .  12
     5.2.  Transport Slice Controller Interfaces . . . . . . . . . .  12
     5.3.  Transport slice Realization . . . . . . . . . . . . . . .  14
   6.  Relationship with End-to-End Network Slicing  . . . . . . . .  14
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  16
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  16
   9.  Acknowledgment  . . . . . . . . . . . . . . . . . . . . . . .  17
   10. Informative References  . . . . . . . . . . . . . . . . . . .  17
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  18

1.  Introduction

   A number of use cases benefit from establishing a transport
   connectivity according to the assurance of a specific set of network
   resources.  Some such services which might benefit from the transport
   slices are:

   o  5G services (e.g. eMBB, URLLC, mMTC)(See [TS.23.501-3GPP])

   o  Network wholesale services

   o  Network infrastructure sharing among the operators

   o  NFV connectivity (Data Center Interconnect)

   o  VPNs with specific characteristics

Rokui, et al.           Expires October 23, 2020                [Page 2]
Internet-Draft    draft-nsdt-transport-slice-definition       April 2020

   This document defines the concept of transport slices that provide
   connectivity with specific use of network resources between a number
Show full document text