Data Model for Static Context Header Compression (SCHC)
draft-ietf-lpwan-schc-yang-data-model-02
lpwan Working Group A. Minaburo
Internet-Draft Acklio
Intended status: Standards Track L. Toutain
Expires: August 31, 2020 Institut MINES TELECOM; IMT Atlantique
February 28, 2020
Data Model for Static Context Header Compression (SCHC)
draft-ietf-lpwan-schc-yang-data-model-02
Abstract
This document describes a YANG data model for the SCHC (Static
Context Header Compression) compression and fragmentation rules.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. SCHC rules . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.1. Compression Rules . . . . . . . . . . . . . . . . . . . . 3
2.2. Field Identifier . . . . . . . . . . . . . . . . . . . . 4
2.3. Field length . . . . . . . . . . . . . . . . . . . . . . 6
2.4. Field position . . . . . . . . . . . . . . . . . . . . . 7
2.5. Direction Indicator . . . . . . . . . . . . . . . . . . . 7
2.6. Target Value . . . . . . . . . . . . . . . . . . . . . . 8
2.7. Matching Operator . . . . . . . . . . . . . . . . . . . . 9
2.7.1. Matching Operator arguments . . . . . . . . . . . . . 10
2.8. Compression Decompresison Actions . . . . . . . . . . . . 10
2.8.1. Compression Decompression Action arguments . . . . . 12
3. Rule definition . . . . . . . . . . . . . . . . . . . . . . . 12
3.1. Compression rule . . . . . . . . . . . . . . . . . . . . 14
3.1.1. Compression context representation. . . . . . . . . . 14
3.1.2. Rule definition . . . . . . . . . . . . . . . . . . . 15
3.2. Fragmentation rule . . . . . . . . . . . . . . . . . . . 16
3.3. YANG Tree . . . . . . . . . . . . . . . . . . . . . . . . 17
4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 19
5. Security considerations . . . . . . . . . . . . . . . . . . . 19
6. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 19
7. YANG Module . . . . . . . . . . . . . . . . . . . . . . . . . 19
8. Normative References . . . . . . . . . . . . . . . . . . . . 33
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 33
1. Introduction
2. SCHC rules
SCHC is a compression and fragmentation mechanism for constrained
networks defined in [I-D.ietf-lpwan-ipv6-static-context-hc] it is
based on a static context shared by two entities at the boundary this
contrained network. Draft [I-D.ietf-lpwan-ipv6-static-context-hc]
provides an abstract representation of the rules used either for
compression/decompression (or C/D) or fragmentation/reassembly (or F/
R). The goal of this document is to formalize the description of the
rules to offer:
o universal representation of the rule to allow the same rule
represention on both ends. For instance; a device can provide the
rule it uses to store them in the core SCHC C/D and F/R.
o a device or the core SCHC instance may update the other end to set
upsome specific values (e.g. IPv6 prefix, Destination
address,...)
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