Gateway Function for Network Slicing
draft-homma-nfvrg-slice-gateway-00

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Last updated 2018-07-02
Replaces draft-homma-coms-slice-gateway
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nfvrg                                                           S. Homma
Internet-Draft                                                       NTT
Intended status: Informational                                 X. de Foy
Expires: January 3, 2019                               InterDigital Inc.
                                                                A. Galis
                                               University College London
                                                            July 2, 2018

                  Gateway Function for Network Slicing
                   draft-homma-nfvrg-slice-gateway-00

Abstract

   This document describes the roles and requirements for a slice
   gateway that is a data plane function or function group for
   connecting/disconnecting and compose/decompose network slice subnets
   and providing network slices from end to end.  The interworkings
   between management and control elements at the management and control
   planes with the gateway function for controlling and orchestrating
   end-to-end network slices are also presented in this document.

Status of This Memo

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   This Internet-Draft will expire on January 3, 2019.

Copyright Notice

   Copyright (c) 2018 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
   publication of this document.  Please review these documents

Homma, et al.            Expires January 3, 2019                [Page 1]
Internet-Draft       draft-homma-nfvrg-slice-gateway           July 2018

   carefully, as they describe your rights and restrictions with respect
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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Definition of Terms . . . . . . . . . . . . . . . . . . . . .   4
   3.  Motivations and Roles of SLG  . . . . . . . . . . . . . . . .   5
   4.  Architecture of Network Slicing System  . . . . . . . . . . .   8
     4.1.  Network Slice Management System Architecture  . . . . . .   8
     4.2.  Position of SLG on ETSI NFV MANO  . . . . . . . . . . . .  10
   5.  Requirements for SLG  . . . . . . . . . . . . . . . . . . . .  11
     5.1.  Management of NS as Infrastructure  . . . . . . . . . . .  11
       5.1.1.  Data Plane Aspect . . . . . . . . . . . . . . . . . .  11
         5.1.1.1.  Identification/Classification . . . . . . . . . .  11
         5.1.1.2.  Transporting/Forwarding . . . . . . . . . . . . .  12
         5.1.1.3.  Isolation between NSs . . . . . . . . . . . . . .  13
         5.1.1.4.  Service Chaining as Infrastructural
                   Mechanism(*Optional)  . . . . . . . . . . . . . .  13
       5.1.2.  Control/Management Planes Aspects . . . . . . . . . .  14
         5.1.2.1.  Interfaces to Controllers or Operation Systems  .  14
         5.1.2.2.  Address Resolution/Routing  . . . . . . . . . . .  14
         5.1.2.3.  Authentication Authorization Accounting (AAA) . .  14
         5.1.2.4.  Operation Administration and Maintenance(OAM) . .  14
     5.2.  Management of Services on NS (*Optional)  . . . . . . . .  14
       5.2.1.  Data Plane Aspect . . . . . . . . . . . . . . . . . .  14
         5.2.1.1.  Identification/Classification . . . . . . . . . .  14
         5.2.1.2.  QoS Control . . . . . . . . . . . . . . . . . . .  15
         5.2.1.3.  Steering/Service Chaining(Cooperation with VNFs)   15
       5.2.2.  Control/Management Planes Aspects . . . . . . . . . .  15
         5.2.2.1.  Interfaces to Service Management Systems  . . . .  15
         5.2.2.2.  Collection of Telemetry information . . . . . . .  15
   6.  Deployment of SLG . . . . . . . . . . . . . . . . . . . . . .  15
     6.1.  Examples of Components Required to Maintain SLG Functions  16
     6.2.  SLG Types Depending on Locations on NS  . . . . . . . . .  16
       6.2.1.  Edge SLG(E-SLG) . . . . . . . . . . . . . . . . . . .  16
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