On Mon, 18 Apr 2005, Melih Turan wrote: > I used the given OID's, but can not get a graph for the SNR. The first line > of the log file is always up to date, however the other lines are not doing > correctly. I tried the perminute and perhour options also but can not get > the right graph. The gauge option sums the values and doesn't give any sense > to me.
Unfortunately, MRTG doesn't like negative numbers if you are using the default log format. If you switch to using RRD as the log format (just put "LogFormat: rrdtool" in your config) you'll be able to record negative values. I had to tweak the range on my rrds after they were created. It looks like I used a range of -100 to 50 for SNR. The command looked something like this. rrdtool tune radio.cfg -i ds0:-100 -a ds0:50 -i ds1:-100 -a ds1:50 Of course, then you need to figure out which CGI frontend you want to use, and that is a problem in itself. I appear to be using mrtg-rrd.cgi, but I don't remember if I had to make any changes to get it to work (it's been a while.) -- Unsubscribe mailto:[EMAIL PROTECTED] Archive http://lists.ee.ethz.ch/mrtg FAQ http://faq.mrtg.org Homepage http://www.mrtg.org WebAdmin http://lists.ee.ethz.ch/lsg2.cgi
