I-D Action: draft-barthel-schc-oam-schc-00.txt

internet-drafts@ietf.org Tue, 27 June 2023 15:13 UTC

MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
From: internet-drafts@ietf.org
To: i-d-announce@ietf.org
Subject: I-D Action: draft-barthel-schc-oam-schc-00.txt
Auto-Submitted: auto-generated
Precedence: bulk
Message-ID: <168787881085.22774.6461261186581954170@ietfa.amsl.com>
Date: Tue, 27 Jun 2023 08:13:30 -0700
Archived-At: <https://mailarchive.ietf.org/arch/msg/i-d-announce/YB1gfIw7ZB5DQfLbHJ7CFmMCl7k>

A New Internet-Draft is available from the on-line Internet-Drafts
directories.

   Title           : OAM for LPWAN using Static Context Header Compression (SCHC)
   Authors         : Dominique Barthel
                     Laurent Toutain
                     Arunprabhu Kandasamy
                     Diego Dujovne
                     Juan Carlos Zuniga
   Filename        : draft-barthel-schc-oam-schc-00.txt
   Pages           : 20
   Date            : 2023-06-27

Abstract:
   This document describes ICMPv6 compression with SCHC and 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.

   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:

   *  To detect if a host is up or down.

   *  To measure the RTT and its variation over time.

   *  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.

   Three main scenarios are investigated:

   *  OAM reachability messages coming from internet.  In that case, the
      SCHC core should act as a proxy and handle specifically the OAM
      traffic.

   *  OAM messages initiated by LPWAN devices: They can be anticipated
      by the core SCHC.

   *  OAM error messages coming from internet.  In that case, the SCHC
      core may forward a compressed version to the device.

   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 also introduces the notion of actions in a SCHC rule,
   to perform locally some operations.

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-barthel-schc-oam-schc/

There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-barthel-schc-oam-schc-00.html

Internet-Drafts are also available by rsync at rsync.ietf.org::internet-drafts

I-D Action: draft-barthel-schc-oam-schc-00.txt internet-drafts