Encapsulations for In-band OAM Data
draft-brockners-inband-oam-transport-01

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Network Working Group                                       F. Brockners
Internet-Draft                                               S. Bhandari
Intended status: Informational                              C. Pignataro
Expires: January 19, 2017                                          Cisco
                                                              H. Gredler
                                                            RtBrick Inc.
                                                                J. Leddy
                                                                 Comcast
                                                               S. Youell
                                                                    JMPC
                                                           July 18, 2016

                  Encapsulations for In-band OAM Data
                draft-brockners-inband-oam-transport-01

Abstract

   In-band operation, administration and maintenance (OAM) records
   operational and telemetry information in the packet while the packet
   traverses a path between two points in the network.  In-band OAM is
   to complement current out-of-band OAM mechanisms based on ICMP or
   other types of probe packets.  This document outlines how in-band OAM
   data records can be transported in protocols such as NSH, Segment
   Routing, VXLAN-GPE, native IPv6 (via extension header), and IPv4.
   Transport options are currently investigated as part of an
   implementation study.  This document is intended to only serve
   informational purposes.

Status of This Memo

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   This Internet-Draft will expire on January 19, 2017.

Brockners, et al.       Expires January 19, 2017                [Page 1]
Internet-Draft         In-band OAM Data Transport              July 2016

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  In-Band OAM Metadata Transport in IPv6  . . . . . . . . . . .   4
     3.1.  In-band OAM in IPv6 Hop by Hop Extension Header . . . . .   4
       3.1.1.  In-band OAM Hop by Hop Options  . . . . . . . . . . .   4
       3.1.2.  Procedure at the Ingress Edge to Insert the In-band
               OAM Header  . . . . . . . . . . . . . . . . . . . . .   6
       3.1.3.  Procedure at Intermediate Nodes . . . . . . . . . . .   7
       3.1.4.  Procedure at the Egress Edge to Remove the In-band
               OAM Header  . . . . . . . . . . . . . . . . . . . . .   7
   4.  In-band OAM Metadata Transport in VXLAN-GPE . . . . . . . . .   7
   5.  In-band OAM Metadata Transport in NSH . . . . . . . . . . . .   9
   6.  In-band OAM Metadata Transport in Segment Routing . . . . . .  11
     6.1.  In-band OAM in SR with IPv6 Transport . . . . . . . . . .  11
     6.2.  In-band OAM in SR with MPLS Transport . . . . . . . . . .  11
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  12
   8.  Manageability Considerations  . . . . . . . . . . . . . . . .  12
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  12
   10. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  12
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  12
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  12
     11.2.  Informative References . . . . . . . . . . . . . . . . .  12
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  14

1.  Introduction

   This document discusses transport mechanisms for "in-band" operation,
   administration, and maintenance (OAM) data records.  In-band OAM
   records OAM information within the packet while the packet traverses
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