IETF Network Slice for 5G and its characteristics
draft-rokui-5g-ietf-network-slice-00

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
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Individual                                                      R. Rokui
Internet-Draft                                                     Nokia
Intended status: Informational                                  S. Homma
Expires: May 6, 2021                                                 NTT
                                                               X. de Foy
                                                       InterDigital Inc.
                                                           LM. Contreras
                                                              Telefonica
                                                              P. Eardley
                                                                      BT
                                                            K. Makhijani
                                                      Futurewei Networks
                                                               H. Flinck
                                                                   Nokia
                                                           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
                  draft-rokui-5g-ietf-network-slice-00

Abstract

   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
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   This Internet-Draft will expire on May 6, 2021.

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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
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