Static Context Header Compression (SCHC) and fragmentation for LPWAN, application to UDP/IPv6
draft-ietf-lpwan-ipv6-static-context-hc-24

Document Type Active Internet-Draft (lpwan WG)
Last updated 2019-12-05
Replaces draft-toutain-lpwan-ipv6-static-context-hc
Stream IETF
Intended RFC status Proposed Standard
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Stream WG state Submitted to IESG for Publication
Document shepherd Pascal Thubert
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IESG IESG state IESG Evaluation::Point Raised - writeup needed
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Has enough positions to pass.
Responsible AD Suresh Krishnan
Send notices to Dominique Barthel <dominique.barthel@orange.com>, Pascal Thubert <pthubert@cisco.com>
IANA IANA review state Version Changed - Review Needed
lpwan Working Group                                          A. Minaburo
Internet-Draft                                                    Acklio
Intended status: Standards Track                              L. Toutain
Expires: June 7, 2020                                     IMT-Atlantique
                                                                C. Gomez
                                    Universitat Politecnica de Catalunya
                                                              D. Barthel
                                                             Orange Labs
                                                              JC. Zuniga
                                                                  SIGFOX
                                                       December 05, 2019

 Static Context Header Compression (SCHC) and fragmentation for LPWAN,
                        application to UDP/IPv6
               draft-ietf-lpwan-ipv6-static-context-hc-24

Abstract

   This document defines the Static Context Header Compression (SCHC)
   framework, which provides both a header compression mechanism and an
   optional fragmentation mechanism.  SCHC has been designed for Low
   Power Wide Area Networks (LPWAN).

   SCHC compression is based on a common static context stored both in
   the LPWAN device and in the network infrastructure side.  This
   document defines a generic header compression mechanism and its
   application to compress IPv6/UDP headers.

   This document also specifies an optional fragmentation and reassembly
   mechanism.  It can be used to support the IPv6 MTU requirement over
   the LPWAN technologies.  Fragmentation is needed for IPv6 datagrams
   that, after SCHC compression or when such compression was not
   possible, still exceed the layer-2 maximum payload size.

   The SCHC header compression and fragmentation mechanisms are
   independent of the specific LPWAN technology over which they are
   used.  This document defines generic functionalities and offers
   flexibility with regard to parameter settings and mechanism choices.
   This document standardizes the exchange over the LPWAN between two
   SCHC entities.  Settings and choices specific to a technology or a
   product are expected to be grouped into profiles, which are specified
   in other documents.  Data models for the context and profiles are out
   of scope.

Minaburo, et al.          Expires June 7, 2020                  [Page 1]
Internet-Draft                 LPWAN SCHC                  December 2019

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on June 7, 2020.

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
   (https://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
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   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.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Requirements Notation . . . . . . . . . . . . . . . . . . . .   5
   3.  LPWAN Architecture  . . . . . . . . . . . . . . . . . . . . .   5
   4.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   6
   5.  SCHC overview . . . . . . . . . . . . . . . . . . . . . . . .   8
     5.1.  SCHC Packet format  . . . . . . . . . . . . . . . . . . .  10
     5.2.  Functional mapping  . . . . . . . . . . . . . . . . . . .  11
   6.  Rule ID . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
   7.  Compression/Decompression . . . . . . . . . . . . . . . . . .  12
     7.1.  SCHC C/D Rules  . . . . . . . . . . . . . . . . . . . . .  13
     7.2.  Rule ID for SCHC C/D  . . . . . . . . . . . . . . . . . .  15
     7.3.  Packet processing . . . . . . . . . . . . . . . . . . . .  15
     7.4.  Matching operators  . . . . . . . . . . . . . . . . . . .  17
     7.5.  Compression Decompression Actions (CDA) . . . . . . . . .  18
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