Hello to all! Since some weeks I use rrd-tool to monitor many different interfaces on a router. I create then only a graph with the sum of all interfaces to have an overview of the total traffic. (CDEF....) All works great except that sometimes in my graph I see some strange peaks (example from 2 - Mbit/s to 100Mbits/s and back to normal traffic).
Here an example on how I create one of the many rrd files (one per interface): rrdtool create eth001.rrd \ --start `date +"%s"` DS:eth0_in:COUNTER:600:U:U DS:eth0_out:COUNTER:600:U:U \ --step 300 \ RRA:AVERAGE:0.5:1:2016 RRA:AVERAGE:0.5:6:1500 RRA:AVERAGE:0.5:144:3650 \ RRA:MAX:0.5:1:2016 RRA:MAX:0.5:6:1500 RRA:MAX:0.5:144:3650 \ RRA:MIN:0.5:1:2016 RRA:MIN:0.5:6:1500 RRA:MIN:0.5:144:3650 Maybe set a max value should be an idea... After this, every 5 minutes a script in crontab collect all informations about the different interfaces (snmpget). It's possible that rrdtool need informations every 5 minutes and if the script takes more than 5 minutes it can cause a peak? Is there a way to prevent such a kind of peaks or to correct them? If I can determinate the right rrd file in which is contained the "error" (peak) I'm not be able well to correct the error, because it's in a COUNTER format. Any suggestion on how correct? Thank's for advice! Bye Simon -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
