Nagios Support Forum

Hi all,

I have had Nagios up and running for about 10 days and everything seems to be reporting properly as far as alarms are concerned. I have noticed however that I show no bandwidth on any of my graphs from my router. What would be a few steps to try to resolve this issue?

I am running Nagios XI that I installed from the VMWare image. I don't have anything special setup on this server.

Any help would be greatly appreciated.

Thank You

Brian

Do they graphs look like graphs or do they say "No data present." or something to that extent?

The graphs all look correct but show no traffic at all. There is no error message stating there is no data.

Access the host/service details page ->Advanced(tab) and check to see if there is performance data for the hosts or services.

Also, check to make sure your system date/time is accurate, that could give you all empty graphs.

The Performance Data under the Advanced tab does not show any data at all. I did look at the time on the server and it was off so I have setup NTP to keep it on track. I will watch the graphs through out the day and see if they start working properly.

I will let you know.

Thank You

After correcting the time on my server and restart the processes I could from the GUI I am still showing no data on any of my physical interfaces in Nagios.

The Performance Data under the Advanced tab does not show any data at all.

This is probably the cause of the issue. Are you using custom checks? Plugin results most be in a certain format in order for performance data to be processed correctly.

Here's a breakdown of what performance data needs to look like.
http://docs.pnp4nagios.org/pnp-0.4/abou ... quirements

Is this problem specific to routers and/or switches?

If so, did you use the switch wizard to set up these checks, or some other method?

I used the wizard in the XI Gui to configure this Router. It is a Brocade Router I don't know if that means anything to you. I don't believe I am doing custom checks as I have not really done anything special to the install or gear I am monitoring I am still in a bit of a test phase.

Brian

My guess is that you set your units too high, so that Nagios is rounding down your bandwidth to 0 Mbps (or whatever unit you set in the wizard).Unfortunately you can't simply run the wizard again to change those values. You'll have to look in the file /etc/mrtg/mrtg.cfg for any lines related to your router and delete them. Then delete the services in XI and re-run the wizard, this time selecting smaller units for each port during Step 3 of the wizard.