For the past few years, I've been trying to understand how to make graphs using RRDtool (Round-Robin Database tool) after failing miserably to understand MRTG (Multi-Router Traffic Grapher) before ...

I think I'm being very stupid.<BR><BR>I've setup Cacti today using a Virtual Appliance.<BR><BR>So far so good and it's monitoring just fine, but to my mind the numbers on some of the graphs don't read ...