Software-Defined Networking: A Service Provider's Perspective
draft-sin-sdnrg-sdn-approach-03

The information below is for an old version of the document
Document Type Active Internet-Draft (individual)
Authors Mohamed Boucadair  , Christian Jacquenet 
Last updated 2013-10-03 (latest revision 2013-06-05)
Stream IETF
Intended RFC status Informational
Formats pdf htmlized (tools) htmlized bibtex
Reviews
Stream WG state (None)
Document shepherd Adrian Farrel
Shepherd write-up Show (last changed 2013-08-28)
IESG IESG state AD Evaluation
Consensus Boilerplate Unknown
Telechat date
Responsible AD Adrian Farrel
Send notices to mohamed.boucadair@orange.com, christian.jacquenet@orange.com, draft-sin-sdnrg-sdn-approach@tools.ietf.org
Network Working Group                                       M. Boucadair
Internet-Draft                                              C. Jacquenet
Intended status: Informational                            France Telecom
Expires: December 07, 2013                                 June 05, 2013

     Software-Defined Networking: A Service Provider's Perspective
                    draft-sin-sdnrg-sdn-approach-03

Abstract

   Software-Defined Networking (SDN) has been one of the major buzz
   words of the networking industry for the past couple of years.  And
   yet, no clear definition of what SDN actually covers has been broadly
   admitted so far.  This document aims at contributing to the
   clarification of the SDN landscape by discussing a service provider's
   perspective on requirements, issues and other considerations about
   SDN.

   It is not meant to endlessly discuss what SDN truly means, but rather
   to suggest a functional taxonomy of the techniques that can be used
   under a SDN umbrella and to elaborate on the various pending issues
   the combined activation of such techniques inevitably raises.  As
   such, a definition of SDN is only mentioned for the sake of
   clarification.

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
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on December 07, 2013.

Boucadair & Jacquenet   Expires December 07, 2013               [Page 1]
Internet-Draft                   On SDN                        June 2013

Copyright Notice

   Copyright (c) 2013 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
   Provisions Relating to IETF Documents
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Introducing Software-Defined Networking . . . . . . . . . . .   4
     2.1.  A Tautology?  . . . . . . . . . . . . . . . . . . . . . .   4
     2.2.  On Flexibility  . . . . . . . . . . . . . . . . . . . . .   4
     2.3.  A Tentative Definition  . . . . . . . . . . . . . . . . .   5
     2.4.  Functional Meta-Domains . . . . . . . . . . . . . . . . .   5
   3.  A Few Considerations  . . . . . . . . . . . . . . . . . . . .   6
     3.1.  Remember The Past . . . . . . . . . . . . . . . . . . . .   6
     3.2.  Be Pragmatic  . . . . . . . . . . . . . . . . . . . . . .   7
     3.3.  Measure Experience Against Expectations . . . . . . . . .   8
     3.4.  Design Carefully  . . . . . . . . . . . . . . . . . . . .   8
     3.5.  There Is Life Beyond OpenFlow . . . . . . . . . . . . . .   9
     3.6.  Non Goals . . . . . . . . . . . . . . . . . . . . . . . .   9
   4.  Discussion  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     4.1.  Implications Of Full Automation . . . . . . . . . . . . .  10
     4.2.  The Intelligence Resides In The PDP . . . . . . . . . . .  11
     4.3.  Simplicity And Adaptability Vs. Complexity  . . . . . . .  12
     4.4.  Performance And Scalability . . . . . . . . . . . . . . .  12
     4.5.  Risk Assessement  . . . . . . . . . . . . . . . . . . . .  13
     4.6.  On Security . . . . . . . . . . . . . . . . . . . . . . .  13
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  13
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .  14
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  14
   8.  Informative References  . . . . . . . . . . . . . . . . . . .  14
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  15

Boucadair & Jacquenet   Expires December 07, 2013               [Page 2]
Internet-Draft                   On SDN                        June 2013

1.  Introduction

   The Internet has become the federative network that supports a wide
Show full document text