[mrtg] Re: Average's messed up..

Alex van den Bogaerdt alex at slot.hollandcasino.nl
Tue Dec 21 02:43:48 MET 1999

Jeff  Warnica wrote:
> Well, not really. I haven't been running mrtg for more than a couple of
> months, so the summaries monthly and yearly graphs are wrong.

Just checking ... ... ... My newly created graph does handle this case
correct.  The average is approximately 11kbps right now, on all the graphs.
Are you using a recent version of MRTG?
see: http://ee-staff.ethz.ch/~oetiker/webtools/mrtg/

> Also, It might be useful to me to be able to graph the usage of a number of
> dial in users to a portmaster (dedicated phone# and line on the pm) But the
> averages would be screwed up.

A user is constantly downloading at maximum speed for one hour.  This
happens at 64 kbps.  All other times this user is offline and the port
is inactive.  You are viewing the standard MRTG window of 400 pixels
equals (400 * 5 minutes = ) 33 hours 20 minutes.

Do I understand correctly that you are trying to make MRTG show an
average of 64 kbps on this period?  If so: that is wrong.  The usage
should be, on average, 1.92 kbps and 3.0 %
What do you try to monitor/log/archive/whatever?

If my assumption in the previous paragraph is correct, you should consider
the following:

When you make the intervals small enough, there will be either 100% usage
or 0% usage.  If you skip the 0% you end up with 100%, always.

 / alex at slot.hollandcasino.nl                  alex at ergens.op.het.net \
| work                                                         private |
| My employer is capable of speaking therefore I speak only for myself |

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