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CoAP Protocol Indication

Document Type Replaced Internet-Draft (core WG)
Expired & archived
Author Christian Amsüss
Last updated 2022-04-14 (Latest revision 2022-03-03)
Replaced by draft-ietf-core-transport-indication
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Additional resources Mailing list discussion
Stream WG state Adopted by a WG
Document shepherd (None)
IESG IESG state Replaced by draft-ietf-core-transport-indication
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


The Constrained Application Protocol (CoAP, [RFC7252]) is available over different transports (UDP, DTLS, TCP, TLS, WebSockets), but lacks a way to unify these addresses. This document provides terminology and provisions based on Web Linking [RFC8288] to express alternative transports available to a device, and to optimize exchanges using these.


Christian Amsüss

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)