Subject: Re: [lmap] I-D Action: draft-ietf-lmap-information-model-01.txt

From: Michael Faath <[email-masked]>
Date: Thu, 10 Jul 2014 11:50:54 +0200

Two things concerning 3.7 Reporting Information:

How about including start-time and end-time for this
measurement-execution in the column-labels instead of a result-time
(which is only the end-time I guess?).

I am not sure how to use the data-field (ma-report-result-values<0..*>).
There is one additional data field in the example, "mean". If I
understood correctly multiple additional fields would look like this:
column: ["time", "conflicting-tasks", "cross-traffic", "mean", "min", "max"]
row: ["2014-06-09T02:30:10+00:00", "", "0", "20.13", "18.3", "24.1"]

What if I would like to add more complex fields? Think about a
traceroute with multiple hops and multiple values per hop (ip, ttl and
three rtts).
column: ["time", "conflicting-tasks", "cross-traffic", "hops"]
row: ["2014-06-09T02:30:10+00:00", "", "0", [{"ip": "192.168.0.1",
"ttl": "3", "rtt-ms": ["18.5", "20.3", "15.0"]}, {...}]]

Is this the way to go?

Nits:
Last sentence in 3.7 needs to be removed as ma-context-obj is
no longer in the draft.

In the JSON Example:
ma-schedule-tasks: the outer element should be a list, not an object
ma-report-task-rows: there needs to be a list instead of an object
inside the outer list.

Thanks,
Michael

On 27.06.2014 16:48, [email-masked] wrote:
> 
> A New Internet-Draft is available from the on-line Internet-Drafts directories.
>  This draft is a work item of the Large-Scale Measurement of Broadband Performance Working Group of the IETF.
> 
>         Title           : Information Model for Large-Scale Measurement Platforms (LMAP)
>         Authors         : Trevor Burbridge
>                           Philip Eardley
>                           Marcelo Bagnulo
>                           Juergen Schoenwaelder
> 	Filename        : draft-ietf-lmap-information-model-01.txt
> 	Pages           : 35
> 	Date            : 2014-06-26
> 
> Abstract:
>    This Information Model applies to the Measurement Agent within a
>    Large-Scale Measurement Platform.  As such it outlines the
>    information that is (pre-)configured on the MA or exists in
>    communications with a Controller or Collector within an LMAP
>    framework.  The purpose of such an Information Model is to provide a
>    protocol and device independent view of the MA that can be
>    implemented via one or more Control and Report protocols.
> 
> 
> 
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-lmap-information-model/
> 
> There's also a htmlized version available at:
> http://tools.ietf.org/html/draft-ietf-lmap-information-model-01
> 
> A diff from the previous version is available at:
> http://www.ietf.org/rfcdiff?url2=draft-ietf-lmap-information-model-01
> 
> 
> 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.
> 
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> 
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