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

Document Type Active Internet-Draft (teas WG)
Authors Reza Rokui  , Shunsuke Homma  , Kiran Makhijani  , Luis Contreras  , Jeff Tantsura 
Last updated 2021-02-22
Replaces draft-nsdt-teas-ietf-network-slice-definition
Stream Internent Engineering Task Force (IETF)
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teas                                                            R. Rokui
Internet-Draft                                                     Nokia
Intended status: Informational                                  S. Homma
Expires: August 26, 2021                                             NTT
                                                            K. Makhijani
                                                               Futurewei
                                                           LM. Contreras
                                                              Telefonica
                                                             J. Tantsura
                                                        Juniper Networks
                                                       February 22, 2021

                   Definition of IETF Network Slices
            draft-ietf-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 August 26, 2021.

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Copyright Notice

   Copyright (c) 2021 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
   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 IETF Network Slice  . . . . . . . . .   4
   4.  IETF Network Slice System Characteristics . . . . . . . . . .   4
     4.1.  Objectives for IETF Network Slices  . . . . . . . . . . .   5
       4.1.1.  Service Level Objectives  . . . . . . . . . . . . . .   5
       4.1.2.  Minimal Set of SLOs . . . . . . . . . . . . . . . . .   5
       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 . . . . . . .  13
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  14
   11. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  14
   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
   in the subsequent sections, we refer to this connectivity and

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