Definition of IETF Network Slices
draft-nsdt-teas-ietf-network-slice-definition-01

Document Type Active Internet-Draft (individual)
Authors Reza Rokui  , Shunsuke Homma  , Kiran Makhijani  , Luis Contreras  , Jeff Tantsura 
Last updated 2020-11-02
Replaces draft-nsdt-teas-transport-slice-definition
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teas                                                            R. Rokui
Internet-Draft                                                     Nokia
Intended status: Informational                                  S. Homma
Expires: May 6, 2021                                                 NTT
                                                            K. Makhijani
                                                               Futurewei
                                                           LM. Contreras
                                                              Telefonica
                                                             J. Tantsura
                                                            Apstra, Inc.
                                                        November 2, 2020

                   Definition of IETF Network Slices
            draft-nsdt-teas-ietf-network-slice-definition-01

Abstract

   This document provides a definition of the term "IETF Network Slice"
   for use within the IETF and specifically as a reference for other
   IETF documents that describe or use aspects of network slices.

   The document also describes the characteristics of an IETF network
   slice, related terms and their meanings, and explains how IETF
   network slices can be used in combination with end-to-end network
   slices or independent of them.

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 6, 2021.

Rokui, et al.              Expires May 6, 2021                  [Page 1]
Internet-Draft  draft-nsdt-ietf-network-slice-definition   November 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
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   (https://trustee.ietf.org/license-info) in effect on the date of
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Rationale . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terms and Abbreviations . . . . . . . . . . . . . . . . . . .   4
   3.  Definition and Scope of IETF Network Slice  . . . . . . . . .   4
   4.  IETF Network Slice System Characteristics . . . . . . . . . .   5
     4.1.  Objectives for IETF Network Slices  . . . . . . . . . . .   5
       4.1.1.  Service Level Objectives  . . . . . . . . . . . . . .   5
       4.1.2.  Minimal Set of SLOs . . . . . . . . . . . . . . . . .   6
       4.1.3.  Other Objectives  . . . . . . . . . . . . . . . . . .   7
     4.2.  IETF Network Slice Endpoints  . . . . . . . . . . . . . .   7
       4.2.1.  IETF Network Slice Connectivity Types . . . . . . . .   9
     4.3.  IETF Network Slice Composition  . . . . . . . . . . . . .   9
   5.  IETF Network Slice Structure  . . . . . . . . . . . . . . . .  10
   6.  IETF Network Slice Stakeholders . . . . . . . . . . . . . . .  11
   7.  IETF Network Slice Controller Interfaces  . . . . . . . . . .  12
   8.  Realizing IETF Network Slice  . . . . . . . . . . . . . . . .  12
   9.  Isolation in IETF Network Slices  . . . . . . . . . . . . . .  13
     9.1.  Isolation as a Service Requirement  . . . . . . . . . . .  13
     9.2.  Isolation in IETF Network Slice Realization . . . . . . .  14
     9.3.  Relationship with Isolation in 5G Network Slice . . . . .  14
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  14
   11. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  15
   12. Acknowledgment  . . . . . . . . . . . . . . . . . . . . . . .  15
   13. Informative References  . . . . . . . . . . . . . . . . . . .  15
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  17

1.  Introduction

   A number of use cases benefit from network connections that along
   with the connectivity provide assurance of meeting a specific set of
   objectives wrt network resources use.  In this document, as detailed
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