[mrtg] Re: MRTG Graph Scaling

Steve Shipway s.shipway at auckland.ac.nz
Fri Jul 1 03:30:57 MEST 2005

>> I am using MRTG to monitor a metric that is normally always 
>between 70 
>> and 80 and would like to see more detail in that range of the graph. 
>> Show the graph starting at 70 and not 0 zero. It would be nice that 
>> the graph auto scaled at the lower end like it does for the upper.

If you are using rrdtool for data storage and routers2 for your data display
frontend, then you can use the directives

routers.cgi*LowerLimit[target]: 70
routers.cgi*UpperLimit[target]: 80
routers.cgi*Options[target]: rigid

to get a graph that is fixed between 70 and 80 on the y-axis.  UpperLimit
requires routers2.cgi v2.14 or later, LowerLimit requires v2.16beta6 or


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