Network Service Header
draft-quinn-sfc-nsh-00

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Document Type Active Internet-Draft (individual)
Last updated 2013-10-07
Replaces draft-quinn-nsh
Replaced by draft-ietf-sfc-nsh, rfc8300
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Network Working Group                                           P. Quinn
Internet-Draft                                       Cisco Systems, Inc.
Intended status: Standards Track                              P. Agarwal
Expires: April 10, 2014                                         R. Manur
                                                                Broadcom
                                                             R. Fernando
                                                             J. Guichard
                                                                S. Kumar
                                                     Cisco Systems, Inc.
                                                              A. Chauhan
                                                                  Citrix
                                                                M. Smith
                                                                N. Yadav
                                                        Insieme Networks
                                                            B. McConnell
                                                               Rackspace
                                                         October 7, 2013

                         Network Service Header
                       draft-quinn-sfc-nsh-00.txt

Abstract

   This draft describes a Network Service Header (NSH) that can be added
   to encapsulated network packets or frames to create network service
   paths.  In addition to path information, this header also carries
   metadata used by network devices and/or network services.

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1.  Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

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
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   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
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   This Internet-Draft will expire on April 10, 2014.

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
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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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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

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Table of Contents

   1.  Requirements Language  . . . . . . . . . . . . . . . . . . . .  2
   2.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
     2.1.  Definition of Terms  . . . . . . . . . . . . . . . . . . .  4
     2.2.  Problem Statement  . . . . . . . . . . . . . . . . . . . .  6
   3.  Network Service Header . . . . . . . . . . . . . . . . . . . .  8
     3.1.  NSH Actions  . . . . . . . . . . . . . . . . . . . . . . .  8
     3.2.  NSH Encapsulation  . . . . . . . . . . . . . . . . . . . .  9
     3.3.  NSH Usage  . . . . . . . . . . . . . . . . . . . . . . . . 10
     3.4.  NSH Proxy Nodes  . . . . . . . . . . . . . . . . . . . . . 10
   4.  Header Format  . . . . . . . . . . . . . . . . . . . . . . . . 12
   5.  NSH Example: GRE . . . . . . . . . . . . . . . . . . . . . . . 15
   6.  Security Considerations  . . . . . . . . . . . . . . . . . . . 16
   7.  Acknowledgments  . . . . . . . . . . . . . . . . . . . . . . . 17
   8.  IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 18
   9.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 19
     9.1.  Normative References . . . . . . . . . . . . . . . . . . . 19
     9.2.  Informative References . . . . . . . . . . . . . . . . . . 19
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 20

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