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Status:

PROPOSED STANDARD

Updates:

RFC 7641,RFC 7959

Updated by:

RFC 8974

Authors:

C. Bormann
S. Lemay
H. Tschofenig
K. Hartke
B. Silverajan
B. Raymor, Ed.

Stream:

IETF

Source:

core (wit)

Cite this RFC:TXT  | XML  |  BibTeX

DOI:  https://doi.org/10.17487/RFC8323

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Other actions:Submit Errata  | Find IPR Disclosures from the IETF  | View History of RFC 8323

Abstract

The Constrained Application Protocol (CoAP), although inspired byHTTP, was designed to use UDP instead of TCP. The message layer ofCoAP over UDP includes support for reliable delivery, simplecongestion control, and flow control.

Some environments benefit from the availability of CoAP carried overreliable transports such as TCP or Transport Layer Security (TLS).This document outlines the changes required to use CoAP over TCP,TLS, and WebSockets transports. It also formally updates RFC 7641for use with these transports and RFC 7959 to enable the use oflarger messages over a reliable transport.

For the definition ofStatus,seeRFC 2026.

For the definition ofStream, seeRFC 8729.