On Wed, 2009-04-22 at 11:18 +0600, Kashif Siddiq Patoli wrote: > Hi, > > I am using following cfg script to monitor the Tx optical power but I > am getting the blank MRTG graph (graph attached): > > Target[optical_power]: > 1.3.6.1.4.1.9.9.91.1.1.1.1.4.34&1.3.6.1.4.1.9.9.91.1.1.1.1.4.34:[email protected] > YLegend[optical_power]: dB actually, the unit reported is centiBels, not deciBels > Options[optical_power]: gauge, noi, nopercent > factor[optical_power]: -1 factor is applied after the data is stored, not before > MaxBytes[optical_power]: 20 That represents +2.0dB (gain)
Note that for negative numbers, you must use rrdtool as the backend, and you must manually tune the rrd (I use -i ds0:-800 -i ds1:-800) > -- Daniel J McDonald, CCIE #2495, CISSP #78281, CNX Austin Energy http://www.austinenergy.com
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