Interconnecting (or Stitching) Network Slice Subnets
draft-defoy-coms-subnet-interconnection-03

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Last updated 2018-03-04
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none                                                           X. de Foy
Internet-Draft                                                 A. Rahman
Intended status: Informational                         InterDigital Inc.
Expires: September 5, 2018                                      A. Galis
                                               University College London
                                                            K. Makhijani
                                                                L. Qiang
                                                     Huawei Technologies
                                                                S. Homma
                                                                     NTT
                                                       P. Martinez-Julia
                                                                    NICT
                                                           March 4, 2018

          Interconnecting (or Stitching) Network Slice Subnets
               draft-defoy-coms-subnet-interconnection-03

Abstract

   This document defines the network slice (NS) subnet as a general
   management plane concept that augments a baseline network slice model
   with management attributes and operations enabling interconnections
   (or stitching) between network slices.  The description of NS subnet
   interconnections is technology agnostic following the approach of the
   COMS information model.  Some interconnections may be implemented
   using the interplay between management plane and gateways in the data
   plane.

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   This Internet-Draft will expire on September 5, 2018.

de Foy, et al.          Expires September 5, 2018               [Page 1]
Internet-Draft               Network slicing                  March 2018

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Motivation and Roles of NS Subnet . . . . . . . . . . . .   3
     1.2.  Usage of NS Subnets . . . . . . . . . . . . . . . . . . .   3
     1.3.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   5
   2.  Information Model . . . . . . . . . . . . . . . . . . . . . .   5
     2.1.  Base Information Model  . . . . . . . . . . . . . . . . .   5
     2.2.  Interconnection Anchors . . . . . . . . . . . . . . . . .   6
     2.3.  Interconnection Instances . . . . . . . . . . . . . . . .   8
     2.4.  Stitching Operation . . . . . . . . . . . . . . . . . . .   9
       2.4.1.  Operation Overview  . . . . . . . . . . . . . . . . .   9
       2.4.2.  Stitching Scenarios . . . . . . . . . . . . . . . . .  10
   3.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  11
   5.  Informative References  . . . . . . . . . . . . . . . . . . .  11
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  12

1.  Introduction

   Network Slicing enables deployment and management of services with
   diverse requirements on end-to-end partitioned virtual networks over
   the same infrastructure, including networking, compute and storage
   resources.  [I-D.geng-coms-problem-statement] describes a problem
   statement for supervised heterogeneous network slicing, enabling
   users to deploy network slices including connectivity, computing and
   storage components.

   A base information model for Common Operations and Management on
   network Slices (COMS) is currently being defined in
   [I-D.qiang-coms-netslicing-information-model].  Nevertheless,
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