configuring MRTG to monitor switch ports

[shinydonut]

Hi,

Has anyone used MRTG to monitor the ports on a Cisco switch? I have a 3500 series switch, and I have no clue how to set up the configuration file. I've set up MRTG for my Cisco routers without a hitch, but the ports are giving me some problems. Can anyone help?

Thanks!
Rich

 

[Zaxxon26]

Yeah MAN!!
I use it for all my core switches. The process is exactally the same. Just make sure you use the correct SNMP RO. The only down side that I ran into is that the config maker only polls active ports so if you add a device to a previously inactive port, you'll have to recreate the .cfg for the switch. I don't think you lose historical data if you redo .cfg if switch has the same IP. So...
in the MTRG bin directory
> perl cfgmaker yoursnmpcomm@Dev.ic.e.ip --global "WorkDir: c:\inetpub\

http://wwwroot\MRTG"

--output switchname.cfg

Edit .cfg
> add ( RunAsDaemon: yes ) to the first line of the .cfg file

Run .cfg
> perl mrtg switchname.cfg

Anyway, it may not be the best way but it works for me

Then create a webpage with links to important connections like to the backbone or to the printserver or to the router.
ENJOY

 

[heymex]

The other thing you can do with inactive ports is just un-comment the appropriate text from the config file. MRTG will then poll the ports, active or not, but you won't see any data unless the port is actually active.