Hi, I have been scouring the net searching for a good bandwidth accounting solution that would be appropriate for a hosting provider/carrier. We are more interested in the total amount of bandwidth the user has utilized in a 7/30/90/365 (whatever) day period of time than a Mbps 'graph' which MRTG would give you. It would also be great if it could allow us to assign logins to our users so they can view their utilization. So far I've looked at MRTG, Cacti, and RTG. Cacti was pretty good execept it doesn't appear to notice changes in a switch, sometimes more than 30 ports on 5 different switches change a day and we'd like something that automatically starts/stops monitoring utilization when the port status changes. I havent found a Netflow tool yet that I really like. Any suggestions? Thanks, Andrew