Hi!
I like to use ntop (from ntop.org) for this, along with MRTG. Others prefer cacti. I found MRTG easier to setup. It comes down to personal preference.
MRTG provides graphs of usage, but I'm not aware of it providing a monthly total usage (or 95% or other) in report form (though would be happy to learn otherwise).Does ntop provide a way to generate a monthly report?
Check RTG. http://rtg.sourceforge.net/ Bye, Raymond.
