Network Slicing - Revised Problem Statement
draft-galis-netslices-revised-problem-statement-01

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Last updated 2017-07-03
Replaces draft-gdmb-netslices-intro-and-ps
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No Working Group                                       A. Galis (editor)
Internet-Draft                                 University College London
Intended Status: Informational                                    et al.
Expires: January 3, 2018                                    July 3, 2017

              Network Slicing - Revised Problem Statement
           draft-galis-netslices-revised-problem-statement-01

Abstract

   This document introduces Network Slicing problems and the motivation
   for new work areas. It represents an initial revision of the Network
   Slicing problem statement derived from the analysis of the technical
   gaps in IETF protocols ecosystem.  It complements and brings together
   the efforts being carried out in several other IETF working groups to
   achieve certain aspects of Network Slicing functions and operations.

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
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   This Internet-Draft will expire on January 2, 2018.

Copyright Notice

   Copyright (c) 2017 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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Galis, et al.           Expires January 3, 2018                 [Page 1]
INTERNET DRAFT Network Slicing Revised Problem Statement       July 2017

   described in the Simplified BSD License.

Table of Contents

   1  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.1 Network Slicing Value Characteristics  . . . . . . . . . . .  4
     1.2 Network Slicing Work Scope . . . . . . . . . . . . . . . . .  5
     1.3 Notes  . . . . . . . . . . . . . . . . . . . . . . . . . . .  7
   2. Network Slicing - Selected Problems and Work Areas  . . . . . .  7
     2.1 Global Issues - Problems (GP)  . . . . . . . . . . . . . . .  7
       2.1.1 Problem GI1: Uniform Reference Model (***) . . . . . . .  7
       2.1.2 Problem GI2: Requirements for operations and
             interactions (**)  . . . . . . . . . . . . . . . . . . .  8
       2.1.3 Problem GI3: Slice Templates (***) . . . . . . . . . . .  9
     2.2 Network Slice Capabilities - Problems (NSC)  . . . . . . . . 10
       2.2.1 Problem NSC1: Guarantees for isolation  (***)  . . . . . 10
       2.2.2 Problem NSC2: Fulfilling diverse requirements (*)  . . . 10
       2.2.3 Problem NSC3: Efficiency in slicing (*)  . . . . . . . . 11
       2.2.4 Problem NSC4: Slice Recursion (**) . . . . . . . . . . . 11
       2.2.5 Problem NSC5: Customized security mechanisms per slice
             (*)  . . . . . . . . . . . . . . . . . . . . . . . . . . 12
       2.2.6 Problem NSC6: flexibility and efficiency trade-offs 
             (*)  . . . . . . . . . . . . . . . . . . . . . . . . . . 12
       2.2.7 Problem NSC7: Optimisation  (**) . . . . . . . . . . . . 12
       2.2.8 Problem NSC8: Monitoring and Discovery (**)  . . . . . . 13
       2.2.9 Problem NSC9: Capability exposure and APIs (***) . . . . 13
       2.2.10 Problem NSC10: Programmability of Operations of
              Network Slices (**) . . . . . . . . . . . . . . . . . . 14
     2.3 Network Slice Operations - Problems (NSO)  . . . . . . . . . 15
       2.3.1 Problem NSO1: Slice life cycle management  (***) . . . . 15
       2.3.2 Problem NSO2: Autonomic slice management and operation
             (**) . . . . . . . . . . . . . . . . . . . . . . . . . . 15
       2.3.3 Problem NSO3 - Slice stitching / composition (***) . . . 16
       2.3.4 Problem NSO4: E2E Network Orchestration (***)  . . . . . 17
       2.3.5 Problem NSO5: Service Mapping in a single domain and
             Cross-Domain Coordination (***)  . . . . . . . . . . . . 18
       2.3.6 Problem NSO6: Roles in Network Slicing (*) . . . . . . . 18
       2.3.7 Problem NSO7: Efficient enablers and methods for
             integration (*)  . . . . . . . . . . . . . . . . . . . . 19
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