OAM for LPWAN using Static Context Header Compression (SCHC)
draft-barthel-lpwan-oam-schc-00

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lpwan Working Group                                           D. Barthel
Internet-Draft                                                 Orange SA
Intended status: Informational                                L. Toutain
Expires: August 1, 2019                                   IMT-Atlantique
                                                            A. Kandasamy
                                                                  Acklio
                                                              D. Dujovne
                                              Universidad Diego Portales
                                                              JC. Zuniga
                                                                  SIGFOX
                                                        January 28, 2019

      OAM for LPWAN using Static Context Header Compression (SCHC)
                       draft-barthel-lpwan-oam-schc-00

Abstract

   With IP protocols now generalizing to constrained networks, users
   expect to be able to Operate, Administer and Maintain them with the
   familiar tools and protocols they already use on less constrained
   networks.

   OAM uses specific messages sent into the data plane to measure some
   parameters of a network.  Most of the time, no explicit values are
   sent is these messages.  Network parameters are obtained from the
   analysis of these specific messages.

   This can be used:

   o  To detect if a host is up or down.

   o  To measure the RTT and its variation over time.

   o  To learn the path used by packets to reach a destination.

   OAM in LPWAN is a little bit trickier since the bandwidth is limited
   and extra traffic added by OAM can introduce perturbation on regular
   transmission.

   Two scenarios can be investigated:

   o  OAM coming from internet.  In that case, the NGW should act as a
      proxy and handle specifically the OAM traffic.

   o  OAM coming from LPWAN devices: This can be included into regular
      devices but some specific devices may be installed in the LPWAN
      network to measure its quality.

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   The primitive functionalities of OAM are achieved with the ICMPv6
   protocol.

   ICMPv6 defines messages that inform the source of IPv6 packets of
   errors during packet delivery.  It also defines the Echo Request/
   Reply messages that are used for basic network troubleshooting (ping
   command).  ICMPv6 messages are transported on IPv6.

   This document describes how basic OAM is performed on Low Power Wide
   Area Networks (LPWANs) by compressing ICMPv6/IPv6 headers and by
   protecting the LPWAN network and the Device from undesirable ICMPv6
   traffic.

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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   Internet-Drafts are draft documents valid for a maximum of six months
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   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on August 1, 2019.

Copyright Notice

   Copyright (c) 2019 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
   to this document.  Code Components extracted from this document must
   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.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Use cases . . . . . . . . . . . . . . . . . . . . . . . . . .   4
   4.  Detailed behavior . . . . . . . . . . . . . . . . . . . . . .   4
     4.1.  Device is the source of an ICMPv6 error message . . . . .   4
     4.2.  Device is the destination of an ICMPv6 error message  . .   5
       4.2.1.  ICMPv6 error message compression. . . . . . . . . . .   6
     4.3.  Device does a ping  . . . . . . . . . . . . . . . . . . .   7