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Publish Option for CoAP

Document type: Expired Internet-Draft (individual)
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Last updated: 2014-07-21 (latest revision 2014-01-06)
Intended RFC status: Unknown
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IESG State: Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found here:


This memo defines the Publish Option for the Constrained Application Protocol (CoAP). The Publish Option is used by a CoAP Endpoint to control the authority delegation of one of its resources to another Endpoint. All the phases of the authority delegation process (setup, renewal, cancellation) are controlled by a simple RESTful protocol. This memo also introduces the 'proxies' Web Linking relation type, to be used by a CoAP Proxy to explicitly advertise the resources that it can serve - either from its cache, or by forwarding the Client's request upstream. The Publish Option and the 'proxies' relation provide the building blocks for a comprehensive, in-protocol, solution to the sleepy/ intermittent Endpoint use case.


Thomas Fossati <>
Pierpaolo Giacomin <>
Salvatore Loreto <>

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