[mrtg] Bandwidth utilization graphing

[Cam Bowman]

I'm running MRTG 2.8.9 on linux.  I have it configured and working to 
collect in/out octets from my routers, and graph the in/out bits on two 
separte lines in the graph.

What I would like to do is graph the total utilization of the link on a 
third line in the graph.  Total in & out packets divided by the total 
bandwidth, for a percentage of the link utilization.  How might I do this?

The other thing I noticed is that the in and out utilization often add up 
to more than 100% of the link - how is this possible?

Last question:  The monthly and yearly graph averages don't really reflect 
my actual utilization, is it possible to make this a little more accurate? 
 I think what is happening is the total average for the day is brought down 
by the "off-hours" where there is little utilization, perhaps what I need 
is a tool that will store more data.  Any suggestions here?


Thanks in advance,


Cam Bowman
Amtelecom Communications
519.773.1381



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