1. Summary
This document provides (Informational) illustration and guidance on
how to use the CoAP protocol (RFC 7252) in a group communication
context, including the use of IP multicast.
(The functionality for this is provided in the base specification,
however with very little guidance on good ways to use it.)
Carsten Bormann is the document shepherd.
Barry Leiba is the responsible Area Director.
2. Review and Consensus
The document was developed along with the base CoAP specification and
received review by a number of active WG members and implementers.
It is not easy to obtain extensive review of informational documents
from the community, but the shepherd is convinced that we have enough
WG-level review for publication as an Informational document.
Wider review (e.g., directorate reviews) has not yet been taken place.
3. Intellectual Property
There is no IPR disclosure referencing this document. The authors
have indicated recently that they are not aware of patent claims
relating to this document.
4. Other Points
(There is an idnits false positive due to the mention of 224.0.1.187,
All CoAP Nodes; there are also idnits comments on what may seem like
references in the changelog to be removed by the RFC editor.)
Messages have been sent to core-parameters@ietf.org for core.gp and
media-types@iana.org for coap-group+json; the intention is that this
processing can go on in parallel.