Hi Giuseppe, Thank you very much for your contribution! I'll merge it into our next revision of the draft. Indeed, I hope the framework can inspire more applications.
Best, Haoyu From: Giuseppe Fioccola <[email protected]> Sent: Wednesday, September 18, 2019 5:57 AM To: Haoyu Song <[email protected]>; [email protected]; [email protected] Subject: RE: iFIT framework draft Dear Haoyu, All, As promised, here is the proposed new section. Feel free to edit and let me know your opinion. " #. Intelligent Network Telemetry applications The closed-loop nature of the IFIT framework allows numerous new applications which enable future network operation architecture. In general, it is resource consuming to monitor continuously all the flows and all the paths of the network. So a flexible and dynamic performance monitoring approach is desired. Some concepts like the Interactive Query with Dynamic Network Probes, as previously described, go in this direction. A good example could be in [I-D.ietf-ippm-multipoint-alt-mark] that describes an intelligent performance management based on the network condition. The idea is to split the monitoring network into Clusters. The Cluster partition that can be applied to every type of network graph and the possibility to combine Clusters at different levels enable the so called Network Zooming. It allows a Controller to calibrate the network telemetry, so that it can start without examining in depth and monitor the network as a whole. In case of necessity (packet loss or too high delay), an immediate detailed analysis can be reconfigured. In particular, the Controller, that is aware of the network topology, can set up the most suited Cluster partition by changing the traffic filter or activate new measurement points and the problem can be localized with a step-by-step process. To apply this mechanism an IFIT Application on top of the Controllers can manage and the IFIT closed loop allows its dynamic and flexible operation. " Best Regards, Giuseppe From: Giuseppe Fioccola Sent: Friday, September 13, 2019 1:51 PM To: 'Haoyu Song' <[email protected]<mailto:[email protected]>>; [email protected]<mailto:[email protected]>; [email protected]<mailto:[email protected]> Subject: RE: iFIT framework draft Dear Haoyu, Yes, I'm happy to send you some text in the coming days, so you can include it in the draft. Best Regards, Giuseppe From: Haoyu Song [mailto:[email protected]] Sent: Thursday, September 12, 2019 7:57 PM To: Giuseppe Fioccola <[email protected]<mailto:[email protected]>>; [email protected]<mailto:[email protected]>; [email protected]<mailto:[email protected]> Subject: RE: iFIT framework draft Hi Giuseppe, Thank you very much for the very good suggestion. Indeed, the closed-loop nature of the framework allows numerous new applications which I believe is indispensable in future's network operation architecture. If you have any suggested section or text available, I'll be happy to include it in the draft. That way, you can fully construe your thought. Otherwise, I'll add some text by myself later. What do you think? Best, Haoyu From: Giuseppe Fioccola <[email protected]<mailto:[email protected]>> Sent: Thursday, September 12, 2019 7:38 AM To: Haoyu Song <[email protected]<mailto:[email protected]>>; [email protected]<mailto:[email protected]>; [email protected]<mailto:[email protected]> Subject: RE: iFIT framework draft Dear All, I have read the draft and, I think it is a very good framework, in particular with reference to the real practical challenges. My suggestion is to highlight a bit more the enabled closed-loop approach that is a great added value in my opinion. A possible way can be to introduce a new Section named "Intelligent Network telemetry" about the flexible and dynamic monitoring. Some concepts like the interactive query with dynamic network probes can be included. An example could also be in draft-ietf-ippm-multipoint-alt-mark, that describes a flexible performance monitoring approach based on the network condition and an iFIT Application on top of the Controllers could apply this intelligent mechanism. Or, also, other examples can be reported. Let me know what you think. Best Regards, Giuseppe From: OPSAWG [mailto:[email protected]] On Behalf Of Haoyu Song Sent: Wednesday, July 17, 2019 8:06 PM To: [email protected]<mailto:[email protected]>; [email protected]<mailto:[email protected]> Subject: [OPSAWG] iFIT framework draft Hi all, We recently uploaded a newer version of the iFIT framework draft. https://datatracker.ietf.org/doc/draft-song-opsawg-ifit-framework/<https://nam03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-song-opsawg-ifit-framework%2F&data=02%7C01%7Chaoyu.song%40futurewei.com%7C96507be0170c49d0d5a408d73c37b72f%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C0%7C637044082325736265&sdata=7l94rTlxPgbgXM5ftLhKRaUU6%2FZUT60PQOokJ0wSCjo%3D&reserved=0> The purposes of the drafts are: 1. Clarify the terms and underlying techniques for data plane on-path telemetry 2. Present a framework that addresses the practical implementation and deployment issues 3. Identify the open issues and directions for related standard development Given the wide industry interests on adopting such techniques, we believe this informational draft is useful and In the scope of OPSAWG. Please review the draft and provide your opinions, suggestions, and comments. Thank you very much! Haoyu
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