RFC 8724 on SCHC: Generic Framework for Static Context Header Compression and Fragmentation

rfc-editor@rfc-editor.org Thu, 16 April 2020 02:40 UTC

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A new Request for Comments is now available in online RFC libraries.

        RFC 8724

        Title:      SCHC: Generic Framework for Static 
                    Context Header Compression and Fragmentation 
        Author:     A. Minaburo, 
                    L. Toutain,
                    C. Gomez,
                    D. Barthel,
                    JC. Zúñiga
        Status:     Standards Track
        Stream:     IETF
        Date:       April 2020
        Mailbox:    ana@ackl.io, 
        Pages:      71
        Updates/Obsoletes/SeeAlso:   None

        I-D Tag:    draft-ietf-lpwan-ipv6-static-context-hc-24.txt

        URL:        https://www.rfc-editor.org/info/rfc8724

        DOI:        10.17487/RFC8724

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

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.

This document is a product of the IPv6 over Low Power Wide-Area Networks Working Group of the IETF.

This is now a Proposed Standard.

STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and suggestions
for improvements.  Please refer to the current edition of the Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the 
standardization state and status of this protocol.  Distribution of this 
memo is unlimited.

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