Re: [ippm] Fwd: New Version Notification for draft-mirsky-ippm-hybrid-two-step-04.txt
Greg Mirsky <gregimirsky@gmail.com> Thu, 10 October 2019 20:20 UTC
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From: Greg Mirsky <gregimirsky@gmail.com>
Date: Thu, 10 Oct 2019 13:19:42 -0700
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To: Haoyu Song <haoyu.song@futurewei.com>
Cc: IETF IPPM WG <ippm@ietf.org>
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Subject: Re: [ippm] Fwd: New Version Notification for draft-mirsky-ippm-hybrid-two-step-04.txt
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Hi Haoyu, thank you for your interest in the HTS proposal. I've read the draft you've mentioned and am glad that we have independently arrived to the same conclusion - it is time to discuss specifics of collecting telemetry information in multicast networks. While we discuss various telemetry protocols we implicitly talk about only unicast flows. As a result, deploying these telemetry protocols in multicast network may cause some unexpected results. I think it would be great to discuss telemetry collection in multicast networks in detail at the meeting. Regards, Greg On Tue, Oct 8, 2019 at 4:50 PM Haoyu Song <haoyu.song@futurewei.com> wrote: > Hi Greg, > > > > I agree that multicast is an important use case to cover for any telemetry > technique. > > In our draft, > https://tools.ietf.org/html/draft-song-multicast-telemetry-00, we also > discussed the on-path multicast telemetry techniques that combine both IOAM > and PBT for efficient multicast support. > > > > Regards, > > Haoyu > > > > *From:* ippm <ippm-bounces@ietf.org> *On Behalf Of * Greg Mirsky > *Sent:* Tuesday, October 08, 2019 10:09 AM > *To:* IETF IPPM WG <ippm@ietf.org> > *Subject:* [ippm] Fwd: New Version Notification for > draft-mirsky-ippm-hybrid-two-step-04.txt > > > > Dear All, > > the new version of the Hybrid Two-Step draft includes the new section on > the use of HTS in a multicast network. The goal is to avoid unnecessary > replication of telemetry information collected on-path while multicast data > packets traverse a multicast distribution tree. At the same time, a > centralized controller should have sufficient information associated with > collected telemetry information to reconstruct the state of the traversed > multicast path based on HTS packets. > > Much appreciate your comments, questions, and suggestions. > > > > Regards, > > Greg > > ---------- Forwarded message --------- > From: <internet-drafts@ietf.org> > Date: Tue, Oct 8, 2019 at 10:00 AM > Subject: New Version Notification for > draft-mirsky-ippm-hybrid-two-step-04.txt > To: Gregory Mirsky <gregimirsky@gmail.com>, Wang Lingqiang < > wang.lingqiang@zte.com.cn>, Guo Zhui <guo.zhui@zte.com.cn> > > > > > A new version of I-D, draft-mirsky-ippm-hybrid-two-step-04.txt > has been successfully submitted by Greg Mirsky and posted to the > IETF repository. > > Name: draft-mirsky-ippm-hybrid-two-step > Revision: 04 > Title: Hybrid Two-Step Performance Measurement Method > Document date: 2019-10-08 > Group: Individual Submission > Pages: 11 > URL: > https://www.ietf.org/internet-drafts/draft-mirsky-ippm-hybrid-two-step-04.txt > <https://nam03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ietf.org%2Finternet-drafts%2Fdraft-mirsky-ippm-hybrid-two-step-04.txt&data=02%7C01%7Chaoyu.song%40futurewei.com%7C8bb3a78d03c2465bf11708d74c126511%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C1%7C637061514211735388&sdata=VK5DdXwWKpWfcjx9No6l%2B1564W7SFYcXK3FOTvDpcmI%3D&reserved=0> > Status: > https://datatracker.ietf.org/doc/draft-mirsky-ippm-hybrid-two-step/ > <https://nam03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fdraft-mirsky-ippm-hybrid-two-step%2F&data=02%7C01%7Chaoyu.song%40futurewei.com%7C8bb3a78d03c2465bf11708d74c126511%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C1%7C637061514211745374&sdata=Jsz53OwTWAQ13C2OFaY54sSvtvtR26bVaJQ9F7T7BkA%3D&reserved=0> > Htmlized: > https://tools.ietf.org/html/draft-mirsky-ippm-hybrid-two-step-04 > <https://nam03.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftools.ietf.org%2Fhtml%2Fdraft-mirsky-ippm-hybrid-two-step-04&data=02%7C01%7Chaoyu.song%40futurewei.com%7C8bb3a78d03c2465bf11708d74c126511%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C1%7C637061514211745374&sdata=oUEuJ4DWh9bjGgaNaJBh7Yyxla190NNjOnERDjakXcQ%3D&reserved=0> > Htmlized: > https://datatracker.ietf.org/doc/html/draft-mirsky-ippm-hybrid-two-step > <https://nam03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fhtml%2Fdraft-mirsky-ippm-hybrid-two-step&data=02%7C01%7Chaoyu.song%40futurewei.com%7C8bb3a78d03c2465bf11708d74c126511%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C1%7C637061514211755371&sdata=FEalLkhr6w6Lgqo1lc3HuduuBug7OUhfvzXOhH8PBy4%3D&reserved=0> > Diff: > https://www.ietf.org/rfcdiff?url2=draft-mirsky-ippm-hybrid-two-step-04 > <https://nam03.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.ietf.org%2Frfcdiff%3Furl2%3Ddraft-mirsky-ippm-hybrid-two-step-04&data=02%7C01%7Chaoyu.song%40futurewei.com%7C8bb3a78d03c2465bf11708d74c126511%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C1%7C637061514211755371&sdata=mQUZJjS70Oy7EbPHuAO8O%2FxpC4oaz2duYg5trtMlSrU%3D&reserved=0> > > Abstract: > Development of, and advancements in, automation of network operations > brought new requirements for measurement methodology. Among them is > the ability to collect instant network state as the packet being > processed by the networking elements along its path through the > domain. This document introduces a new hybrid measurement method, > referred to as hybrid two-step, as it separates the act of measuring > and/or calculating the performance metric from the act of collecting > and transporting network state. > > > > > Please note that it may take a couple of minutes from the time of > submission > until the htmlized version and diff are available at tools.ietf.org > <https://nam03.safelinks.protection.outlook.com/?url=http%3A%2F%2Ftools.ietf.org&data=02%7C01%7Chaoyu.song%40futurewei.com%7C8bb3a78d03c2465bf11708d74c126511%7C0fee8ff2a3b240189c753a1d5591fedc%7C1%7C1%7C637061514211755371&sdata=BDJo1loEJXAvHrsrtDaAM7lyMzfnDHybM26mgM7hDXM%3D&reserved=0> > . > > The IETF Secretariat >