[core] Fwd: New Version Notification for draft-tiloca-core-groupcomm-proxy-04.txt
Marco Tiloca <marco.tiloca@ri.se> Fri, 16 July 2021 12:34 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-groupcomm-proxy-04.txt
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Hello CoRE, We have recently submitted an update for the draft "Proxy Operations for CoAP Group Communication". https://datatracker.ietf.org/doc/html/draft-tiloca-core-groupcomm-proxy-04 The document details the operations of proxies supporting CoAP group communication and addresses the issues identified in [1]. In particular, a client can send a unicast CoAP group request to the proxy including a new Option to indicate to the proxy the time period to collect responses. Also a new Option is included in the servers' responses, to enable the client to separate and identify the multiple responses it receives via the proxy. Following what discussed during the CoRE interim at [2], this update covers especially the following points. 1) The caching model at the proxy is now fully defined in this document (see Section 7). This has built on preliminary content originally in draft-ietf-core-groupcomm-bis and now moved here, with additional improvements and clarifications as suggested especially by Christian Amsüss. 2) Added further clarifications on how the proxy forwards back responses to the client "as they come", handling also possible multiple responses to a same group request from a same server in the group. 3) The appendix "Using OSCORE Between Client and Proxy" has been removed. At IETF 110 [3], it was agreed to have such an item separately and better defined in a separate draft, which is now available at [4] and is referred by this document. Comments are very welcome! Best, /Marco [1] https://datatracker.ietf.org/doc/html/draft-ietf-core-groupcomm-bis-04#section-3.5 [2] https://datatracker.ietf.org/meeting/interim-2021-core-07/session/core [3] https://datatracker.ietf.org/doc/minutes-110-core-202103081700/ [4] https://datatracker.ietf.org/doc/draft-tiloca-core-oscore-capable-proxies/ -------- Forwarded Message -------- Subject: New Version Notification for draft-tiloca-core-groupcomm-proxy-04.txt Date: Mon, 12 Jul 2021 10:22:50 -0700 From: internet-drafts@ietf.org To: Esko Dijk <esko.dijk@iotconsultancy.nl>, Marco Tiloca <marco.tiloca@ri.se> A new version of I-D, draft-tiloca-core-groupcomm-proxy-04.txt has been successfully submitted by Marco Tiloca and posted to the IETF repository. Name: draft-tiloca-core-groupcomm-proxy Revision: 04 Title: Proxy Operations for CoAP Group Communication Document date: 2021-07-12 Group: Individual Submission Pages: 43 URL: https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ietf.org%2Farchive%2Fid%2Fdraft-tiloca-core-groupcomm-proxy-04.txt&data=04%7C01%7Cmarco.tiloca%40ri.se%7C556178caf1954687c92008d94559ae8e%7C5a9809cf0bcb413a838a09ecc40cc9e8%7C0%7C0%7C637617073767977550%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=cJiLDyxA2IiiGKQwuQZnu4TuEBXirOUudVHPQlbhVhw%3D&reserved=0 Status: https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-tiloca-core-groupcomm-proxy%2F&data=04%7C01%7Cmarco.tiloca%40ri.se%7C556178caf1954687c92008d94559ae8e%7C5a9809cf0bcb413a838a09ecc40cc9e8%7C0%7C0%7C637617073767977550%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=kCBttuHyNrb%2BMrboJ4bFw24EduBR4ql1g7m6gtquj6Q%3D&reserved=0 Htmlized: https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fhtml%2Fdraft-tiloca-core-groupcomm-proxy&data=04%7C01%7Cmarco.tiloca%40ri.se%7C556178caf1954687c92008d94559ae8e%7C5a9809cf0bcb413a838a09ecc40cc9e8%7C0%7C0%7C637617073767977550%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=yFYFinBvVXZ0bKByNlQIMOFFGowp9wZA44kHpJQmQvk%3D&reserved=0 Diff: https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ietf.org%2Frfcdiff%3Furl2%3Ddraft-tiloca-core-groupcomm-proxy-04&data=04%7C01%7Cmarco.tiloca%40ri.se%7C556178caf1954687c92008d94559ae8e%7C5a9809cf0bcb413a838a09ecc40cc9e8%7C0%7C0%7C637617073767977550%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=MQ8OiHeF7JDvFM8Gq8nSxlBuupjcV991F2%2FtCWdKW%2BA%3D&reserved=0 Abstract: This document specifies the operations performed by a forward-proxy or reverse-proxy, when using the Constrained Application Protocol (CoAP) in group communication scenarios. Such CoAP proxy processes a single request, sent by a CoAP client over unicast, and distributes the request over IP multicast to a group of CoAP servers. It then collects the individual responses from these CoAP servers and sends these responses to the CoAP client, in a way that allows the client to distinguish the responses and their origin servers through addressing information. This document updates RFC7252. The IETF Secretariat
- [core] Fwd: New Version Notification for draft-ti… Marco Tiloca