[mrtg] Re: Setting Y axis scale to a fixed value

[Steve Shipway]

> Mark Said: >> I'd be perfectly happy if the graphs only went 
> as far as the red line.
> 
> I had also explored this problem before. Setting the absmax 
> value will result the graph cross the maxbytes up to absmax 
> value. However if the values (spikes) goes beyond absmax it 
> will set to zero, but not trauncated at the absmax. 

Actually, values in excess of AbsMax are set to Unknown.  If you have
unknaszero set then this will be displayed as zero.   Under the routers2
frontend, unknowns are displayed with a grey background.

The only way I know to make the values *clip* at AbsMax is to write a
wrapper to do the data collection for you - awkward and ugly.  Maybe this
would be a good option for Tobi to add (eg: 'Option[]: clip' to make values
clip at AbsMax rather than become Unknown?)

Steve


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