[mrtg] Re: problem with statistic values

[Larry Sheldon]

> I downloaded mrtg-2.8.8 and installed it completly new to monitor our new 3Com
> switches.
> Comparing the created statistics with the graphics from the old mrtg version I
> used before, I noticed a problem:
> 
> The values
> 
>  - avarage in / out
>  - max in / out
> 
> in all 4 graphics were not correctly updated and "loose" old values.
> 
> Sample:
> Past week our 1 GBIT Layer 3 switch had a max out value of 1000K,
> reported on wednesday.
> Today (monday) the max out value of the past week displays only 160K. Also the
> month and year graphics doesn't mention the 1000K value anymore.
> 
> This mysterius effect does happen on all monitored devices and all graphics.
> 
> Any ideas?

Unless the traffic is a flat line at the higher value, I would expect the
kind of thing you report.

Don't forget, the top graph is five-minute averages, the next one down
is thirty-minute averages of the five-minute averages, and so on.

Turn on the WithPeak option to see what the biggest five-minute average was
in the thirty-minute average.
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- L. F. (Larry) Sheldon, Jr.                                            -
. Unix Systems and Network Administration                               .
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