Service Function Chaining (SFC) Architecture
draft-quinn-sfc-arch-02

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Last updated 2013-10-21
Replaces draft-quinn-nsc-arch
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Network Working Group                                           P. Quinn
Internet-Draft                                               J. Guichard
Intended status: Standards Track                                S. Kumar
Expires: April 24, 2014                                     C. Pignataro
                                                     Cisco Systems, Inc.
                                                              P. Agarwal
                                                                R. Manur
                                                                Broadcom
                                                              N. Leymann
                                                        Deutsche Telekom
                                                                M. Smith
                                                                N. Yadav
                                                        Insieme Networks
                                                                 K. Gray
                                                               T. Nadeau
                                                        Juniper Networks
                                                               K. Glavin
                                                                Riverbed
                                                        October 21, 2013

              Service Function Chaining (SFC) Architecture
                      draft-quinn-sfc-arch-02.txt

Abstract

   This document describes an architecture for the creation of Service
   Function Chains.  It includes architectural concepts, principles, and
   components used for the application of services in a network.  This
   document does not propose solutions or protocols.

Status of this Memo

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   This Internet-Draft will expire on April 24, 2014.

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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
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   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
     1.1.  Scope  . . . . . . . . . . . . . . . . . . . . . . . . . .  3
     1.2.  Definition of Terms  . . . . . . . . . . . . . . . . . . .  3
     1.3.  Service Function Chaining  . . . . . . . . . . . . . . . .  4
   2.  Architectural Concepts . . . . . . . . . . . . . . . . . . . .  5
     2.1.  Service Function Chains  . . . . . . . . . . . . . . . . .  5
     2.2.  Service Function Chain Symmetry  . . . . . . . . . . . . .  8
     2.3.  Service Function Paths . . . . . . . . . . . . . . . . . .  8
   3.  Service Function Chaining Architecture . . . . . . . . . . . .  9
     3.1.  Architecture Principles  . . . . . . . . . . . . . . . . .  9
     3.2.  Fundamental Components . . . . . . . . . . . . . . . . . .  9
   4.  Summary  . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
   5.  Security Considerations  . . . . . . . . . . . . . . . . . . . 13
   6.  Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 14
   7.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 15
     7.1.  Normative References . . . . . . . . . . . . . . . . . . . 15
     7.2.  Informative References . . . . . . . . . . . . . . . . . . 15
   Appendix A.  Existing Service Deployments  . . . . . . . . . . . . 16
   Appendix B.  Issues with Existing Deployments  . . . . . . . . . . 17
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 18

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1.  Introduction
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