Resource Management in Service Chaining
draft-irtf-nfvrg-resource-management-service-chain-01

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Last updated 2015-08-29 (latest revision 2015-07-06)
Replaces draft-lee-nfvrg-resource-management-service-chain
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Internet Research Task Force (IRTF)                               S. Lee
Internet-Draft                                                      ETRI
Intended status: Informational                                   S. Pack
Expires: January 7, 2016                                              KU
                                                               M-K. Shin
                                                                    ETRI
                                                                 E. Paik
                                                                      KT
                                                               R. Browne
                                                                   Intel
                                                            July 6, 2015

                Resource Management in Service Chaining
         draft-irtf-nfvrg-resource-management-service-chain-01

Abstract

   This document specifies problem definition and use cases of NFV
   resource management in service chaining for path optimization,
   traffic optimization, failover, load balancing, etc.  It further
   describes design considerations and relevant framework for the
   resource management capability that dynamically creates and updates
   network forwarding paths (NFPs) considering resource constraints of
   NFV infrastructure.

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 7, 2016.

Copyright Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Lee, et al.              Expires January 7, 2016                [Page 1]
Internet-Draft   Resource Management in Service Chaining       July 2015

   This document is subject to BCP 78 and the IETF Trust's Legal
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   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Resource management in service chain  . . . . . . . . . . . .   4
     3.1.  Resource scheduling among network services  . . . . . . .   4
     3.2.  Performance coupling within a service chain . . . . . . .   5
     3.3.  Multiple policies and conflicts . . . . . . . . . . . . .   6
     3.4.  Dynamic adaptation of service chains  . . . . . . . . . .   6
   4.  Use cases . . . . . . . . . . . . . . . . . . . . . . . . . .   7
     4.1.  Fail-over . . . . . . . . . . . . . . . . . . . . . . . .   7
     4.2.  Load balancing  . . . . . . . . . . . . . . . . . . . . .   8
     4.3.  Path optimization . . . . . . . . . . . . . . . . . . . .   8
     4.4.  Traffic optimization  . . . . . . . . . . . . . . . . . .   8
     4.5.  Energy efficiency . . . . . . . . . . . . . . . . . . . .   9
   5.  Framework . . . . . . . . . . . . . . . . . . . . . . . . . .   9
   6.  Applicability to SFC  . . . . . . . . . . . . . . . . . . . .  10
     6.1.  Related works in IETF SFC WG  . . . . . . . . . . . . . .  10
     6.2.  Integration in SFC control-plane architecture . . . . . .  10
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  12
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  12
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  12
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .  12
     9.2.  Informative References  . . . . . . . . . . . . . . . . .  12
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  14

1.  Introduction

   Network Functions Virtualisation (NFV) [ETSI-NFV-WHITE] offers a new
   way to design, deploy and manage network services.  The network
   service can be composed of one or more network functions and NFV
   relocates the network functions from dedicated hardware appliances to
   generic servers, so they can run in software.  Using these
   virtualized network functions (VNFs), one or more VNF forwarding
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