using cacti to monitor throughput with cisco router

[ejortegau]

Hey:
I'm trying to monitor throughput (in and out) a specific interface on my cisco 1801 router. I already added the device succesfully. I go to create new graph, select on the Fa0 interface (which is the one i want to monitor) and then click on create button. Then, i wait a couple of hours to see what happens. When I check the grpahs, I see the axes but no plot. And current, average and maximun values show nan.

I know the poller works (I've run it from console, no problems). It's like the data isn't there.

Any ideas are welcome, or if anyone know of a different way to measure and plot throughput, i might switch to them. Thanks.[/b]

[BSOD2600]

try http://docs.cacti.net/node/283