Distributed NFV in Scattered Premises
draft-geng-nfvrg-distributed-nfv-00

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NFVRG                                                            L. Geng
Internet-Draft                                              China Mobile
Intended status: Informational                             March 7, 2017
Expires: September 8, 2017

                 Distributed NFV in Scattered Premises
                  draft-geng-nfvrg-distributed-nfv-00

Abstract

   This document introduces the distributed NFV (D-NFV) concept based on
   potential implementation in scattered locations including customer
   edge devices and transport network equipments.  The motivation of
   pushing NFV entities from conventional centralized infrastructures to
   distributed promises is discussed, which are driven by the
   requirements of high flexibility, low end-to-end latency and faster
   time-to-market in future network.  To better understand the D-NFV
   concept, examples of D-NFV implementation is introduced.  Potential
   use cases are also described as references for readers.  Gaps have
   also been recognized in the documents in terms of the investigation
   of appropriate virtualization technologies used in the D-NFV and
   corresponding management and orchestration challenges.

Status of This Memo

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   This Internet-Draft will expire on September 8, 2017.

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Geng                    Expires September 8, 2017               [Page 1]
Internet-Draft               Distributed NFV                  March 2017

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   3
   3.  Terminology and Abbreviations . . . . . . . . . . . . . . . .   3
   4.  NFV in Different Points of Presence . . . . . . . . . . . . .   3
     4.1.  Centralized NFV . . . . . . . . . . . . . . . . . . . . .   3
     4.2.  Distributed NFV . . . . . . . . . . . . . . . . . . . . .   4
   5.  Typical NFVI-PoPs in Distributed NFV  . . . . . . . . . . . .   6
     5.1.  Distributed NFV in Customer Edge Devices  . . . . . . . .   6
     5.2.  Distributed NFV in Service Provider Transport and Bearer
           Networks  . . . . . . . . . . . . . . . . . . . . . . . .   7
   6.  Use cases of Distributed NFV  . . . . . . . . . . . . . . . .   7
     6.1.  Use Case 1 - VNFaaS and VNPaaS in Residential and
           Enterprise Network  . . . . . . . . . . . . . . . . . . .   7
     6.2.  Use Case 2 - Mission Critical Services  . . . . . . . . .   7
     6.3.  Use Case 3 - End-to-end Network Slicing Management  . . .   8
     6.4.  Use Case 4 - Managed Multiple Provisioning for Network
           Elements  . . . . . . . . . . . . . . . . . . . . . . . .   8
     6.5.  Use Case 5 - Elastic VPN  . . . . . . . . . . . . . . . .   8
   7.  Rethinking VNFs in Distributed NFV  . . . . . . . . . . . . .   8
   8.  Virtualization Technologies in Distributed NFV  . . . . . . .   8
   9.  Management and Orchestration of Distributed NFV . . . . . . .   8
   10. IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
   11. Security Considerations . . . . . . . . . . . . . . . . . . .   9
   12. References  . . . . . . . . . . . . . . . . . . . . . . . . .   9
     12.1.  Normative References . . . . . . . . . . . . . . . . . .   9
     12.2.  Informative References . . . . . . . . . . . . . . . . .   9
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   9

1.  Introduction

   As new services such as IoT start to emerge, service provider's
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