[core] Fwd: I-D Action: draft-ietf-core-observe-multicast-notifications-01.txt
Marco Tiloca <marco.tiloca@ri.se> Fri, 16 July 2021 12:28 UTC
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From: Marco Tiloca <marco.tiloca@ri.se>
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Subject: [core] Fwd: I-D Action: draft-ietf-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://datatracker.ietf.org/doc/html/draft-ietf-core-observe-multicast-notifications-01 The document describes how a CoAP server can send Observe notifications over multicast, and how Group OSCORE can be used to protect such notifications. This update is especially about the following points. 1) Simplified cancellation of the group observation, with no need for the server to use an explicit cancellation request. 2) If the server provides clients with information to join the right OSCORE group, the parameters and their semantics are aligned with the latest updates in draft-ietf-core-oscore-groupcomm-12 and draft-ietf-ace-key-groupcomm-oscore-11. 3) Improved Appendix C about the server self-managing the OSCORE group and Appendix D about using Cacheable OSCORE [1]. 4) Added a new Appendix G, which provides a discussed example when using together a proxy, Group OSCORE and Cacheable OSCORE [1]. Comments are very welcome! Best, /Marco [1] https://datatracker.ietf.org/doc/draft-amsuess-core-cachable-oscore/ -------- Forwarded Message -------- Subject: [core] I-D Action: draft-ietf-core-observe-multicast-notifications-01.txt Date: Mon, 12 Jul 2021 08:35:22 -0700 From: internet-drafts@ietf.org Reply-To: core@ietf.org To: i-d-announce@ietf.org CC: core@ietf.org A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Constrained RESTful Environments WG of the IETF. Title : Observe Notifications as CoAP Multicast Responses Authors : Marco Tiloca Rikard Höglund Christian Amsüss Francesca Palombini Filename : draft-ietf-core-observe-multicast-notifications-01.txt Pages : 77 Date : 2021-07-12 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 addressed to all the clients observing a same target resource. This document updates RFC7252 and RFC7641, and defines how a server sends observe notifications as response messages over multicast, 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 between the server and the observer clients. The IETF datatracker status page for this draft is: https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-ietf-core-observe-multicast-notifications%2F&data=04%7C01%7Cmarco.tiloca%40ri.se%7C1ce2149aeb1043e18b5608d9454ac649%7C5a9809cf0bcb413a838a09ecc40cc9e8%7C0%7C0%7C637617009728442257%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=n0bXpuLi3jp3X4Qw7iQYqlywymJlZvOfyAZsjts9xj4%3D&reserved=0 There is also an HTML version available at: https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ietf.org%2Farchive%2Fid%2Fdraft-ietf-core-observe-multicast-notifications-01.html&data=04%7C01%7Cmarco.tiloca%40ri.se%7C1ce2149aeb1043e18b5608d9454ac649%7C5a9809cf0bcb413a838a09ecc40cc9e8%7C0%7C0%7C637617009728442257%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=ByI1NU5O0p9zuxWsvpSqP%2BJuMNU%2FowhkR8%2FTfY0CG3M%3D&reserved=0 A diff from the previous version is available at: https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ietf.org%2Frfcdiff%3Furl2%3Ddraft-ietf-core-observe-multicast-notifications-01&data=04%7C01%7Cmarco.tiloca%40ri.se%7C1ce2149aeb1043e18b5608d9454ac649%7C5a9809cf0bcb413a838a09ecc40cc9e8%7C0%7C0%7C637617009728452226%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=aNV18b4G63Khkpu8RvRGJuHqUd2zcfQ40MQcal7W2to%3D&reserved=0 Internet-Drafts are also available by anonymous FTP at: https://eur02.safelinks.protection.outlook.com/?url=ftp%3A%2F%2Fftp.ietf.org%2Finternet-drafts%2F&data=04%7C01%7Cmarco.tiloca%40ri.se%7C1ce2149aeb1043e18b5608d9454ac649%7C5a9809cf0bcb413a838a09ecc40cc9e8%7C0%7C0%7C637617009728452226%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=iSw%2BRsdLPfyuBxlBLWW6f34%2BnbybWIzYGQO644eURZE%3D&reserved=0 _______________________________________________ core mailing list core@ietf.org https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ietf.org%2Fmailman%2Flistinfo%2Fcore&data=04%7C01%7Cmarco.tiloca%40ri.se%7C1ce2149aeb1043e18b5608d9454ac649%7C5a9809cf0bcb413a838a09ecc40cc9e8%7C0%7C0%7C637617009728452226%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=91hJFLnDeDrBmLf5tdrqOl0d61cSHkYzPIAp9uQt504%3D&reserved=0
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