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RFC 8824: Static Context Header Compression (SCHC) for the Constrained Application Protocol (CoAP)

In plain English — editorial summary, not part of the RFC

This document defines how to compress Constrained Application Protocol (CoAP) headers using the Static Context Header Compression and fragmentation (SCHC) framework. SCHC defines a header compression mechanism adapted for Constrained Devices. SCHC uses a static description of the header to reduce the header's redundancy and size. While RFC 8724 describes the SCHC compression and fragmentation framework, and its application for IPv6/UDP headers, this document applies SCHC to CoAP headers. The CoAP header structure differs from IPv6 and UDP, since CoAP uses a flexible header with a variable number of options, themselves of variable length. The CoAP message format is asymmetric: the request messages have a header format different from the format in the response messages. This specification gives guidance on applying SCHC to flexible headers and how to leverage the asymmetry for more efficient compression Rules.

Document record

Document ID
RFC8824
Published
June 2021
Authors
A. Minaburo; L. Toutain; R. Andreasen
Status
PROPOSED STANDARD
Stream
IETF
Area
int
Pages
30
Also known as
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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

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canonical URL: /rfc/8824-static-context-header-compression-schc-for-the-constrained-application-protocol