VNF Pool Orchestration For Automated Resiliency in Service Chains
draft-bernini-nfvrg-vnf-orchestration-03

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NFV Research Group                                            G. Bernini
Internet-Draft                                                  G. Landi
Intended status: Informational                                 Nextworks
Expires: April 7, 2017                                          D. Lopez
                                                     P. Aranda Gutierrez
                                                              Telefonica
                                                         October 4, 2016

   VNF Pool Orchestration For Automated Resiliency in Service Chains
                draft-bernini-nfvrg-vnf-orchestration-03

Abstract

   Network Function Virtualisation (NFV) aims at evolving the way
   network operators design, deploy and provision their networks by
   leveraging on standard IT virtualisation technologies to move and
   consolidate a wide range of network functions and services onto
   industry standard high volume servers, switches and storage.  The
   primary target for operators, stimulated by the recent updates on NFV
   and SDN, is the network edge.  In fact, operators are considering
   their future datacentres and Points of Presence (PoPs) as
   increasingly dynamic infrastructures where Virtualised Network
   Functions (VNFs) and on-demand chained services with high elasticity
   will be deployed.

   This document presents an orchestration framework for automated
   deployment of highly available VNF chains.  Resiliency of VNFs and
   chained services is a key requirement for operators to improve, ease,
   automate and speed up services lifecycle management.  The proposed
   VNFs orchestration framework is also positioned with respect to
   current NFV and Service Function Chaining (SFC) architectures and
   solutions.

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Bernini, et al.           Expires April 7, 2017                 [Page 1]

Internet-Draft              VNF Orchestration               October 2016

   This Internet-Draft will expire on April 7, 2017.

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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  VNF Pool Orchestration for Resilient Virtual Appliances . . .   4
     3.1.  Problem Statement . . . . . . . . . . . . . . . . . . . .   5
     3.2.  Orchestration Framework . . . . . . . . . . . . . . . . .   6
       3.2.1.  Orchestrator  . . . . . . . . . . . . . . . . . . . .   8
       3.2.2.  SDN Controller  . . . . . . . . . . . . . . . . . . .   8
       3.2.3.  Service Function Path Manager . . . . . . . . . . . .   9
       3.2.4.  Edge Configurator . . . . . . . . . . . . . . . . . .  10
     3.3.  Resiliency Control Functions for Chained VNFs . . . . . .  10
   4.  Positioning in Existing NFV and SFC Frameworks  . . . . . . .  12
     4.1.  Mapping into NFV Architecture . . . . . . . . . . . . . .  12
     4.2.  Mapping into SFC Architecture . . . . . . . . . . . . . .  13
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  13
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  13
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  13
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  14
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .  14
     8.2.  Informative References  . . . . . . . . . . . . . . . . .  14
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  14

1.  Introduction

   Current Telco infrastructures are facing the rapid development of the
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