[mrtg] Percentage and calculation with OIDs ??

BALLO Ismaël iballo at afribone.net.ml
Tue Nov 26 15:14:33 MET 2002


I use a formula to obtain Frame Error Rate for a radio-modem :

%Error = RF/(RF+TF)*100

where RF : Retransmitted Frame
TF : Transmitted Frame.

In terms of OIDS for BreezeAccess Products, it gives :
WorkDir: /home
Target[bmbms]: at bmbms /
.1.710. at bmbms + at bmbms)
Unscaled[bmbms]: ym
MaxBytes[bmbms]: 1
Factor[bmbms]: 100
Suppress[bmbms]: y
Options[bmbms]:  gauge, nobanner, transparent, noo, dorelpercent
#Xsize[bmbms]: 600
#Ysize[bmbms]: 200
YLegend[bmbms]: % Error
LegendO[bmbms]:  Frame Error Rate
Legend2[bmbms]: Errors in %
Title[bmbms]:  Frame Errors.
PageTop[bmbms]: Average Signal Strength / Errors -- Sample.

But, unfortunately, I don't receive what I expect.
I 've got no errors but obtain always 0.
MRTG does some round maybe or do i have to use an option ?
MaxBytes confuses me but it complains in not using it in cfg file.


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