Nagios - MRTG

[rush_tech]

Hi I have just installed nagios on fedora, I'm having a problem with the check_mrtg plugin. I have set it up as per the quickstart guide on the nagios site. I can monitor the uptime of the switch, port uptime, but the bandwidth though the port is'nt working

I have changed the hostname in the switch.cfg file and left the file path as is

define service{
use generic-service ; Inherit values from a template
host_name switch01
service_description Port 1 Bandwidth Usage
check_command check_local_mrtgtraf!/var/lib/mrtg/192.168.1.253_1.log!AVG!1000000,2000000!5000000,50 00000!10
}

It gives a error " unable to open log file /path/123456.log" so I give it the file where it wants it and then IU get a different error "unable to process log file /path/123456.log"

Anyone got any ideas?

[Ric_]

It appears to be ignoring your log path for a start... check the definition of the checkcommand (should be in checkcommands.conf).

There's some checks on the wiki to directly query the switches which may work out better for you too.

[rush_tech]

Cheers Ric_ I shall take a look

[soapyfish]

To prevent starting another thread on this topic, Does anyone have any experience in enabeling the 64bit counters in mrtg ? it seems to be a well documented issues when monitoring links running at 1Gbps or more. The data through put is not correctly logged

I cannot for the life of me get it working right although the solution seems to be as simple as adding the ::::2 to the end of the target line in each device/port config file. :-(

[powdarrmonkey]

On the contrary, if it's a new question please start a new topic. It makes searching so much easier.

I've never tried with 64 bit counters, however.

[soapyfish]

I think I might have solved it I will post tomorrow after ther D2D2T system has thrashed the switch bandwidth abit and I have some conclusive results.

I have posted the solution so far here

mrtg and gigabit traffic