Re: [CCAMP] Fwd: Re: Fwd: Re: WG Last Call: draft-ietf-ccamp-dpm
Lou Berger <lberger@labn.net> Wed, 06 June 2012 19:27 UTC
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Date: Wed, 06 Jun 2012 15:27:18 -0400
From: Lou Berger <lberger@labn.net>
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To: Al Morton <acmorton@att.com>
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Cc: ccamp@ietf.org, dbrungard@att.com
Subject: Re: [CCAMP] Fwd: Re: Fwd: Re: WG Last Call: draft-ietf-ccamp-dpm
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Al, I take it that the review by the Performance Metrics Directorate is now complete. Is this correct? Thanks again for your review. Lou On 5/20/2012 9:42 AM, Al Morton wrote: > Lou and Deborah, > > As requested, my brief review of the dpm draft is below. > I've also asked for a Performance Metrics Directorate volunteer > who could review the draft quickly. If another review is coming, > I'll let you know. > > Al > > >> Date: Sat, 19 May 2012 10:06:22 -0400 >> To: Lou Berger <lberger@labn.net> >> From: Al Morton <acmorton@att.com> >> Subject: Re: Fwd: Re: [CCAMP] WG Last Call: draft-ietf-ccamp-dpm >> Cc: "BRUNGARD, DEBORAH A (ATTLABS)" <db3546@att.com> >> >> Hi Lou, >> >> I took a quick look this morning, the authors have nicely adopted >> the familiar metric framework used in other performance work, >> and I like the metric naming - very straightforward to sort out >> the names once you read the explanation in section 3, >> although they could say explicitly how they've done it, so it lends >> to extension in the future. >> >> I would suggest they give the acronym expansion in each section. >> for example: >> >> >>> 5.2. Metric Name >>> >>> RRFD = RESV Received, Forward Datapath >> >> >> One word choice in section 1 could be improved: >> >> >>> >>> This document defines a series of performance metrics to evaluate the >>> availability of data path during the signaling process. >> >> I would suggests/availability/connectivity/ >> >> "availability" has many more rigorous definitions than the >> test pattern used here. >> >> A minor concern: >> It seems that the length of the test signal will influence >> the delay measurement, the simple serialization time for bits >> in the first packet of the signal, which it seems could be a >> Jumbo packet. This should be mentioned as it is applicable as >> a potential source of error for all the metrics. I realize this may >> be negligible on high speed interfaces using a single packet for >> the test signal - but they've left the option for long test >> signals. There is clear motivation to use small packets from a >> performance-bias perspective. >> >> -=-=-=-=-=-=- >> >> In recent news, the Performance Metrics Directorate has been formed >> in the OPS area, and we review drafts when WG chairs request. >> As PMDir Admin, I'd be glad to ask for a review volunteer. >> Let me know. >> >> We usually try to do early review of WG doc candidates rather >> than WG Last Call, simply because the feedback might be extensive. >> http://www.ietf.org/iesg/directorate/performance-metrics.html >> >> hope this helps, >> Al > > > > >
- [CCAMP] WG Last Call: draft-ietf-ccamp-dpm Lou Berger
- Re: [CCAMP] WG Last Call: draft-ietf-ccamp-dpm Weiqiang Sun
- Re: [CCAMP] WG Last Call: draft-ietf-ccamp-dpm Lou Berger
- [CCAMP] Fwd: Re: Fwd: Re: WG Last Call: draft-iet… Al Morton
- Re: [CCAMP] Fwd: Re: Fwd: Re: WG Last Call: draft… Lou Berger
- Re: [CCAMP] Fwd: Re: Fwd: Re: WG Last Call: draft… Weiqiang Sun
- Re: [CCAMP] Fwd: Re: Fwd: Re: WG Last Call: draft… Weiqiang Sun
- Re: [CCAMP] Fwd: Re: Fwd: Re: WG Last Call: draft… Lou Berger
- Re: [CCAMP] Fwd: Re: Fwd: Re: WG Last Call: draft… Al Morton
- Re: [CCAMP] Fwd: Re: Fwd: Re: WG Last Call: draft… Lou Berger
- Re: [CCAMP] Fwd: Re: Fwd: Re: WG Last Call: draft… Weiqiang Sun
- Re: [CCAMP] Fwd: Re: Fwd: Re: WG Last Call: draft… Al Morton