Encapsulations for In-situ OAM Data
draft-brockners-inband-oam-transport-03

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ippm                                                        F. Brockners
Internet-Draft                                               S. Bhandari
Intended status: Informational                               V. Govindan
Expires: September 13, 2017                                 C. Pignataro
                                                                   Cisco
                                                              H. Gredler
                                                            RtBrick Inc.
                                                                J. Leddy
                                                                 Comcast
                                                               S. Youell
                                                                    JMPC
                                                              T. Mizrahi
                                                                 Marvell
                                                                D. Mozes
                                              Mellanox Technologies Ltd.
                                                             P. Lapukhov
                                                                Facebook
                                                                R. Chang
                                                       Barefoot Networks
                                                          March 12, 2017

                  Encapsulations for In-situ OAM Data
                draft-brockners-inband-oam-transport-03

Abstract

   In-situ Operations, 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-situ OAM is
   to complement current out-of-band OAM mechanisms based on ICMP or
   other types of probe packets.  This document outlines how in-situ OAM
   data fields can be transported in protocols such as NSH, Segment
   Routing, VXLAN-GPE, native IPv6 (via extension headers), 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

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

Brockners, et al.      Expires September 13, 2017               [Page 1]
Internet-Draft         In-situ OAM Data Transport             March 2017

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
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   This Internet-Draft will expire on September 13, 2017.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Conventions . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  In-Situ OAM Metadata Transport in IPv6  . . . . . . . . . . .   4
     3.1.  In-situ OAM in IPv6 Hop by Hop Extension Header . . . . .   5
       3.1.1.  In-situ OAM Hop by Hop Options  . . . . . . . . . . .   5
   4.  In-situ OAM Metadata Transport in IPv4  . . . . . . . . . . .   6
     4.1.  In-situ OAM Metadata Transport in GRE . . . . . . . . . .   6
   5.  In-situ OAM Metadata Transport in VXLAN-GPE . . . . . . . . .   9
   6.  In-situ OAM Metadata Transport in NSH . . . . . . . . . . . .  11
     6.1.  In-situ OAM Tracing in NSH  . . . . . . . . . . . . . . .  11
     6.2.  In-situ OAM POT in NSH  . . . . . . . . . . . . . . . . .  13
     6.3.  In-situ OAM Edge-to-Edge in NSH . . . . . . . . . . . . .  14
   7.  In-situ OAM Metadata Transport in Segment Routing . . . . . .  15
     7.1.  In-situ OAM in SR with IPv6 Transport . . . . . . . . . .  15
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