The IESG has received a request from the Constrained RESTful Environments WG (core) to consider the following document: - 'Group Communication for CoAP' <draft-ietf-core-groupcomm-21.txt> as Informational RFC The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2014-08-14. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract CoAP is a specialized web transfer protocol for constrained devices and constrained networks. It is anticipated that constrained devices will often naturally operate in groups (e.g., in a building automation scenario all lights in a given room may need to be switched on/off as a group). This document provides guidance for how the CoAP protocol should be used in a group communication context. An approach for using CoAP on top of IP multicast is detailed. Also, various use cases and corresponding protocol flows are provided to illustrate important concepts. Finally, guidance is provided for deployment in various network topologies. The file can be obtained via http://datatracker.ietf.org/doc/draft-ietf-core-groupcomm/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-ietf-core-groupcomm/ballot/ No IPR declarations have been submitted directly on this I-D.
