[core] Fwd: New Version Notification for draft-tiloca-core-observe-multicast-notifications-01.txt

Marco Tiloca <marco.tiloca@ri.se> Tue, 05 November 2019 10:56 UTC

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From: Marco Tiloca <marco.tiloca@ri.se>
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Subject: [core] Fwd: New Version Notification for draft-tiloca-core-observe-multicast-notifications-01.txt
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Hello CoRE,

We have submitted an update for the draft "Observe Notifications as CoAP
Multicast Responses".

https://tools.ietf.org/html/draft-tiloca-core-observe-multicast-notifications-01

The document describes how a CoAP server can send Observe notifications
over multicast, by synchronizing the observers of a target resource to a
same shared Token value. Also, it describes how Group OSCORE can be used
to protect such notifications sent over multicast. The proposed approach
is especially relevant for, but not limited to, the "Pub-Sub and
Multicast" use case elaborated during the Hallway Discussion at IETF 104.

This update has revised and simplified the solution design, based on the
feedback from IETF 105, the dedicated workshop in Stockholm on the 16th
of October and the following discussion at the CoRE interim meeting on
the same day.

Comments are very welcome!

Best,
/Marco


-------- Forwarded Message --------
Subject: 	New Version Notification for
draft-tiloca-core-observe-multicast-notifications-01.txt
Date: 	Mon, 4 Nov 2019 11:04:04 -0800
From: 	internet-drafts@ietf.org
To: 	Christian Amsuess <christian@amsuess.com>, Marco Tiloca
<marco.tiloca@ri.se>, Rikard Hoeglund <rikard.hoglund@ri.se>, Francesca
Palombini <francesca.palombini@ericsson.com>




A new version of I-D,
draft-tiloca-core-observe-multicast-notifications-01.txt
has been successfully submitted by Marco Tiloca and posted to the
IETF repository.

Name: draft-tiloca-core-observe-multicast-notifications
Revision: 01
Title: Observe Notifications as CoAP Multicast Responses
Document date: 2019-11-04
Group: Individual Submission
Pages: 18
URL:
https://www.ietf.org/internet-drafts/draft-tiloca-core-observe-multicast-notifications-01.txt
Status:
https://datatracker.ietf.org/doc/draft-tiloca-core-observe-multicast-notifications/
Htmlized:
https://tools.ietf.org/html/draft-tiloca-core-observe-multicast-notifications-01
Htmlized:
https://datatracker.ietf.org/doc/html/draft-tiloca-core-observe-multicast-notifications
Diff:
https://www.ietf.org/rfcdiff?url2=draft-tiloca-core-observe-multicast-notifications-01

Abstract:
The Constrained Application Protocol (CoAP) allows clients to
"observe" resources at a server, and receive notifications as unicast
responses upon changes of the resource state. In some use cases,
such as based on publish-subscribe, it would be convenient for the
server to send a single notification to all the clients observing a
same target resource. This document defines how a CoAP server sends
observe notifications as response messages over multicast, by
synchronizing all the observers of a same resource on a same shared
Token value. Besides, this document defines how Group OSCORE can be
used to protect multicast notifications end-to-end from the CoAP
server to the multiple observer clients.



Please note that it may take a couple of minutes from the time of submission
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