Static Context Header Compression (SCHC) and fragmentation for LPWAN, application to UDP/IPv6
draft-ietf-lpwan-ipv6-static-context-hc-21
| The information below is for an old version of the document | |||
|---|---|---|---|
| Document | Type | Active Internet-Draft (lpwan WG) | |
| Last updated | 2019-08-22 (latest revision 2019-07-23) | ||
| Replaces | draft-toutain-lpwan-ipv6-static-context-hc | ||
| Stream | IETF | ||
| Intended RFC status | Proposed Standard | ||
| Formats | pdf htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Pascal Thubert | ||
| Shepherd write-up | Show (last changed 2018-06-29) | ||
| IESG | IESG state | IESG Evaluation::Revised I-D Needed | |
| Consensus Boilerplate | Yes | ||
| Telechat date |
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 | IANA OK - No Actions Needed | |
lpwan Working Group A. Minaburo
Internet-Draft Acklio
Intended status: Standards Track L. Toutain
Expires: January 24, 2020 IMT-Atlantique
C. Gomez
Universitat Politecnica de Catalunya
D. Barthel
Orange Labs
JC. Zuniga
SIGFOX
July 23, 2019
Static Context Header Compression (SCHC) and fragmentation for LPWAN,
application to UDP/IPv6
draft-ietf-lpwan-ipv6-static-context-hc-21
Abstract
This document defines the Static Context Header Compression (SCHC)
framework, which provides both header compression and fragmentation
functionalities. SCHC has been designed for Low Power Wide Area
Networks (LPWAN).
SCHC compression is based on a common static context stored in both
the LPWAN device and the network side. This document defines a
header compression mechanism and its application to compress IPv6/UDP
headers.
This document also specifies a fragmentation and reassembly mechanism
that is 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 January 24, 2020 [Page 1]
Internet-Draft LPWAN SCHC July 2019
Status of This Memo
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This Internet-Draft will expire on January 24, 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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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 . . . . . . . . . . . . . . . . . . . 10
6. Rule ID . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
7. Compression/Decompression . . . . . . . . . . . . . . . . . . 12
7.1. SCHC C/D Rules . . . . . . . . . . . . . . . . . . . . . 12
7.2. Rule ID for SCHC C/D . . . . . . . . . . . . . . . . . . 14
7.3. Packet processing . . . . . . . . . . . . . . . . . . . . 15
7.4. Matching operators . . . . . . . . . . . . . . . . . . . 17
7.5. Compression Decompression Actions (CDA) . . . . . . . . . 17
Minaburo, et al. Expires January 24, 2020 [Page 2]
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