[mrtg] Re: Question on how rateup program and perl routines i n MRTGtie toge ther

[Jyotin Basrur]

Sorry if I missed this from the Manual. 
Could you give me a few lines on how the different programs get executed?
Just so that I can go tweak it if I need to.
Thanks a lot.
Jyotin

-----Original Message-----
From: PAUL WILLIAMSON [mailto:pwilliamson at mandtbank.com]
Sent: Wednesday, April 07, 2004 10:47 AM
To: jbasrur at axiowave.com; mrtg at list.ee.ethz.ch
Subject: [mrtg] Re: Question on how rateup program and perl routines in
MRTGtie toge ther


>>> "Jyotin Basrur" <jbasrur at axiowave.com> 04/07/04 10:40AM >>>
>I need to modify/add to some of the features of MRTG. I am trying to
>understand how MRTG code works.

Oh boy...new features...

>Here is what I am headed for:
>I am assuming that MRTG simply takes the old and new values of the OID
>and subtracts it amd figures out what the rate is based on the polling
>interval.

Not really, but sort of.  It also takes into account the EXACT time it is
polled 
and "normalizes" the data for a possible over or under from the exact
interval.

>If the value is a constant it will display a zero because there is no
change
>in the value...essentially it plots a rate
>rather than a value. I need to make it plot a value as opposed to a rate.

Dang, all this just to say RTFM.  The feature is already there.  Read up 
on Options: gauge.

Paul


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