[core] I-D Action: draft-ietf-core-multicast-notifications-proxy-00.txt

internet-drafts@ietf.org Mon, 20 October 2025 13:25 UTC

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Date: Mon, 20 Oct 2025 06:25:17 -0700
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Subject: [core] I-D Action: draft-ietf-core-multicast-notifications-proxy-00.txt
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Internet-Draft draft-ietf-core-multicast-notifications-proxy-00.txt is now
available. It is a work item of the Constrained RESTful Environments (CORE) WG
of the IETF.

   Title:   Using Proxies for Observe Notifications as CoAP Multicast Responses
   Authors: Marco Tiloca
            Rikard Höglund
            Christian Amsüss
            Francesca Palombini
   Name:    draft-ietf-core-multicast-notifications-proxy-00.txt
   Pages:   38
   Dates:   2025-10-20

Abstract:

   The Constrained Application Protocol (CoAP) allows clients to
   "observe" resources at a server and to receive notifications as
   unicast responses upon changes of the resource state.  Instead of
   sending a distinct unicast notification to each different client, a
   server can alternatively send a single notification as a response
   message over multicast, to all the clients observing the same target
   resource.  When doing so, the security protocol Group Object Security
   for Constrained RESTful Environments (Group OSCORE) can be used to
   protect multicast notifications end-to-end between the server and the
   observer clients.  This document describes how multicast
   notifications can be used in network setups that leverage a proxy,
   e.g., in order to accommodate clients that are not able to directly
   listen to multicast traffic.



   The present version -00 refers to version -12 of draft-ietf-core-
   observe-multicast-notifications, which includes content about proxies
   that is also included in the present document.  Such content will be
   removed from draft-ietf-core-observe-multicast-notifications in its
   next revision.

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-core-multicast-notifications-proxy/

There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-ietf-core-multicast-notifications-proxy-00.html

Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts

[core] I-D Action: draft-ietf-core-multicast-noti… internet-drafts