ETSI
ETSI GS NFV 002 V1.2.1 (2014
Contents
Intellectual Property Rights ................................................................................................................................ 5
Foreword ............................................................................................................................................................. 5
Modal verbs terminology .................................................................................................................................... 5
1 Scope ........................................................................................................................................................ 6
2 References ................................................................................................................................................ 6
2.1 Normative references ......................................................................................................................................... 6
2.2 Informative references ........................................................................................................................................ 6
3 Definitions and abbreviations ................................................................................................................... 7
3.1 Definitions .......................................................................................................................................................... 7
3.2 Abbreviations ..................................................................................................................................................... 7
4 Overview .................................................................................................................................................. 7
4.1 Document Structure and Purpose ....................................................................................................................... 7
4.2 Summary of Objectives of NFV ......................................................................................................................... 8
4.3 Approach ............................................................................................................................................................ 8
5 NFV Framework and Scope ..................................................................................................................... 9
5.1 General ............................................................................................................................................................... 9
5.2 High-Level NFV Framework ........................................................................................................................... 10
6 Network Services in NFV ...................................................................................................................... 11
6.1 Introduction to Network Services in NFV ........................................................................................................ 11
6.2 Virtualisation of Functional Blocks for Network Services ............................................................................... 11
6.3 Implications of NFV ......................................................................................................................................... 13
7 NFV Reference Architectural Framework ............................................................................................. 13
7.1 Introduction ...................................................................................................................................................... 13
7.2 Architectural Functional Blocks ....................................................................................................................... 13
7.2.1 Overview of the Functional Blocks ............................................................................................................ 13
7.2.2 Virtualised Network Function (VNF) ......................................................................................................... 14
7.2.3 Element Management (EM) ........................................................................................................................ 14
7.2.4 NFV Infrastructure ...................................................................................................................................... 15
7.2.4.1 NFV Infrastructure Definition ............................................................................................................... 15
7.2.4.2 Hardware Resources.............................................................................................................................. 15
7.2.4.3 Virtualisation Layer and Virtualised Resources .................................................................................... 15
7.2.5 Virtualised Infrastructure Manager(s) ......................................................................................................... 16
7.2.6 NFV Orchestrator ....................................................................................................................................... 16
7.2.7 VNF Manager(s) ......................................................................................................................................... 16
7.2.8 Service, VNF and Infrastructure Description.............................................................................................. 16
7.2.9 Operations Support Systems and Business Support Systems (OSS/BSS) .................................................. 17
7.3 Reference Points ............................................................................................................................................... 17
7.3.1 Virtualisation Layer - Hardware Resources - (Vl-Ha) ................................................................................ 17
7.3.2 VNF - NFV Infrastructure (Vn-Nf) ............................................................................................................ 17
7.3.3 NFV Orchestrator - VNF Manager (Or-Vnfm) ........................................................................................... 17
7.3.4 Virtualised Infrastructure Manager - VNF Manager (Vi-Vnfm) ................................................................ 17
7.3.5 NFV Orchestrator - Virtualised Infrastructure Manager (Or-Vi) ................................................................ 17
7.3.6 NFVI - Virtualised Infrastructure Manager (Nf-Vi) ................................................................................... 17
7.3.7 OSS/BSS - NFV Management and Orchestration (Os-Ma) ........................................................................ 18
7.3.8 VNF/EM - VNF Manager (Ve-Vnfm) ........................................................................................................ 18
8 Study Items in NFV Reference Architectural Framework ..................................................................... 18
8.1 Introduction ...................................................................................................................................................... 18
8.2 Virtualisation Layering and NFVI Support ...................................................................................................... 18
8.3 VNF Software Architecture .............................................................................................................................. 19
8.4 NFV Management and Orchestration ............................................................................................................... 19
8.5 Performance ..................................................................................................................................................... 19
