IPv6 Segment Routing Header (SRH)

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Document Type Active Internet-Draft (6man WG)
Last updated 2017-03-13
Replaces draft-previdi-6man-segment-routing-header
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Network Working Group                                    S. Previdi, Ed.
Internet-Draft                                               C. Filsfils
Intended status: Standards Track                                 K. Raza
Expires: September 14, 2017                                     D. Dukes
                                                     Cisco Systems, Inc.
                                                                J. Leddy
                                                                B. Field
                                                                D. Voyer
                                                              D. Bernier
                                                             Bell Canada
                                                           S. Matsushima
                                                                I. Leung
                                                   Rogers Communications
                                                              J. Linkova
                                                                E. Aries
                                                               T. Kosugi
                                                               E. Vyncke
                                                     Cisco Systems, Inc.
                                                               D. Lebrun
                                        Universite Catholique de Louvain
                                                            D. Steinberg
                                                    Steinberg Consulting
                                                               R. Raszuk
                                                          March 13, 2017

                   IPv6 Segment Routing Header (SRH)


   Segment Routing (SR) allows a node to steer a packet through a
   controlled set of instructions, called segments, by prepending an SR
   header to the packet.  A segment can represent any instruction,
   topological or service-based.  SR allows to enforce a flow through
   any path (topological, or application/service based) while
   maintaining per-flow state only at the ingress node to the SR domain.

   Segment Routing can be applied to the IPv6 data plane with the
   addition of a new type of Routing Extension Header.  This draft
   describes the Segment Routing Extension Header Type and how it is
   used by SR capable nodes.

Previdi, et al.        Expires September 14, 2017               [Page 1]
Internet-Draft      IPv6 Segment Routing Header (SRH)         March 2017

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   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
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   This Internet-Draft will expire on September 14, 2017.

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Table of Contents

   1.  Segment Routing Documents . . . . . . . . . . . . . . . . . .   3
   2.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   4
     2.1.  Data Planes supporting Segment Routing  . . . . . . . . .   4
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