Re: [PMOL] PMOL directorate: meeting at the IETF?
Benoit Claise <bclaise@cisco.com> Mon, 22 October 2012 22:48 UTC
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Date: Mon, 22 Oct 2012 18:48:24 -0400
From: Benoit Claise <bclaise@cisco.com>
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To: Benoit Claise <bclaise@cisco.com>
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Cc: xrblock-chairs@tools.ietf.org, Ron Bonica <rbonica@juniper.net>, "ippm-chairs@tools.ietf.org" <ippm-chairs@tools.ietf.org>, "pmol@ietf.org" <pmol@ietf.org>, Wesley Eddy <wes@mti-systems.com>
Subject: Re: [PMOL] PMOL directorate: meeting at the IETF?
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With doodle this time http://www.doodle.com/fz3gxri76ngzqygv Thanks Carlos B. > Dear PMOL directorate members, > > During my review of the latest AVTCORE and XRBLOCK drafts ( > draft-ietf-xrblock-rtcp-xr-pdv and draft-ietf-avtcore-monarch), I came > to the conclusion that we have an issue in terms of performance > metrics at the IETF, and actually in the industry. > > As background information, here is my DISCUSS on the two drafts > > ---------------------------------------------------------------------- > DISCUSS: > ---------------------------------------------------------------------- > > My entire point is more a DISCUSS-DISCUSS, for both > draft-ietf-avtcore-monarch-19 and draft-ietf-xrblock-rtcp-xr-pdv-05.txt. > Sorry to pick on these two drafts, but we need to have an IESG > performance metrics discussion. > Where does the list of performance metric definitions come from at the > IETF? > We have multiple sources: > - IPPM for IP performance metrics > - RTCP for RTP performance metrics: > Definitions in the document themselves or potentially referencing some > other SDOs > Example:http://tools.ietf.org/html/draft-ietf-xrblock-rtcp-xr-pdv-05 > bits 014-011 > 0: MAPDV2, Clause 6.2.3.2 of [G.1020], > 1: 2-point PDV, Clause 6.2.4 of [Y.1540]. > - PMOL: Performance Metrics at Other Layers, with > RFC 6076 on Basic Telephony SIP End-to-End Performance Metrics > - IPFIX will one day or the other exports performance metrics. > I see for example > http://tools.ietf.org/html/draft-akhter-opsawg-perfmon-ipfix-03 > It's again a redefinition, and it should not be! > > My concerns are that we start to define performance metrics in different > parts of the IETF, without consistency. > > We have defined RFC 6390 on "Guidelines for Considering New Performance > Metric Development", which ask for specific definition > Seehttp://tools.ietf.org/html/rfc6390#section-5.4.4 > > I believe that the IETF should at least: > - define the performance metrics in a consistent way according to > RFC6390. > - document those performance metrics in a single location > > So my questions are: > - are we defining the performance metrics the right way? > - where is this shared repository of performance metrics (at least for > the ones created in the IETF)? > - is the PMOL directorate (RFC 6390) used effectively? > > After discussing with Dan Romascanu, we came to this conclusion > > I had a discussion with Dan Romascanu, and we settled on: > - RFC 6390 template is required for new perf metric definition > - RFC 6390 template is a nice-to-have when we refer to an existing perf metric > Nice-to-have because the performance metric reference doesn't always include > all the required information about: measurement points, measurement timing, use > and applications, reporting model, etc... but focus only on the "Method of > Measurement or Calculation" > > I would like to have a meeting during the IETF, with the following agenda > - are we defining the performance metrics the right way? > - where is this shared repository of performance metrics (at least for > the ones created in the IETF)? > - is the PMOL directorate (RFC 6390) used effectively? > - conclusion discussed with Dan > > Here is a doodle invite. Please let me know if/when you are available. > Your feedback on this mailer is also welcome. > Regards, Benoit >
- [PMOL] PMOL directorate: meeting at the IETF? Benoit Claise
- Re: [PMOL] PMOL directorate: meeting at the IETF? Benoit Claise
- Re: [PMOL] PMOL directorate: meeting at the IETF? Romascanu, Dan (Dan)
- Re: [PMOL] PMOL directorate: meeting at the IETF? Benoit Claise
- Re: [PMOL] PMOL directorate: meeting at the IETF? Benoit Claise
- Re: [PMOL] PMOL directorate: meeting at the IETF? Aamer Akhter (aakhter)
- [PMOL] Reminder: meeting today: PMOL directorate:… Benoit Claise