IETF Network Slice for 5G and its characteristics

Document Type Active Internet-Draft (individual)
Authors Reza Rokui  , Shunsuke Homma  , Xavier de Foy  , Luis Contreras  , Philip Eardley  , Kiran Makhijani  , Hannu Flinck  , Rainer Schatzmayr  , Ali Tizghadam  , Christopher Janz  , Henry Yu 
Last updated 2020-11-02
Replaces draft-rokui-5g-transport-slice
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)
Individual                                                      R. Rokui
Internet-Draft                                                     Nokia
Intended status: Informational                                  S. Homma
Expires: May 6, 2021                                                 NTT
                                                               X. de Foy
                                                       InterDigital Inc.
                                                           LM. Contreras
                                                              P. Eardley
                                                            K. Makhijani
                                                      Futurewei Networks
                                                               H. Flinck
                                                           R. Schatzmayr
                                                        Deutsche Telekom
                                                            A. Tizghadam
                                                TELUS Communications Inc
                                                                 C. Janz
                                                                   H. Yu
                                                           Huawei Canada
                                                        November 2, 2020

           IETF Network Slice for 5G and its characteristics


   5G Network slicing is an approach to provide separate independent
   end-to-end logical network from User Equipment (UE) to various mobile
   applications where each network slice has its own Service Level
   Agreement (SLA) and Objectives (SLO) requirements.  Each end-to-end
   network slice consists of a multitude of contexts across RAN, Core
   and transport domains each with its own controller.  To provide
   automation, assurance and optimization of the 5G the network slices,
   a 5G E2E network slice orchestrator is needed which interacts with
   controllers in RAN, Core and Transport network domains.  The
   interfaces between the 5G E2E network slice orchestrator and RAN and
   Core controllers are defined in various 3GPP technical
   specifications.  However, 3GPP has not defined a similar interface
   for transport network.

   The aim of this document is to describe E2E network slicing and its
   relation to "IETF network slice" for 5G use-case.  It also provides
   an information model for control and mangement of IETF network slices
   for 5G.

Rokui, et al.              Expires May 6, 2021                  [Page 1]
Internet-Draft        draft-rokui-5G-network-slice         November 2020

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

   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.

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
   ( 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  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Definition of Terms . . . . . . . . . . . . . . . . . . .   4
   2.  Architecture of a 5G end-to-end network slice . . . . . . . .   5
   3.  Typical flow for fulfillment of a 5G E2E network slice  . . .   8
   4.  Definition of 5G IETF Network Slice . . . . . . . . . . . . .  11
     4.1.  5G IETF Network Slices in Distributed RAN deployment  . .  12
     4.2.  5G IETF Network Slices in Centralized RAN deployment  . .  13
     4.3.  5G IETF Network Slices in Cloud RAN (C-RAN) . . . . . . .  13
     4.4.  5G IETF Network Slice as a set of Connection Groups . . .  14
Show full document text