MRTG
Powerb@se provides a Multi Router Traffic Grapher(MRTG), which monitors and displays the amount of website traffic on your network.

The MRTG gives a user-friendly, quick reference live image that shows exactly how much online traffic is passing through your system, and can easily be assessed through any computer connected to the Internet. The MRTG gives full measurement reports and statistics, including the average traffic flow over a day, a week, a month or a year.

The MRTG allows you plan your network capacity and expand it accordingly, increasing your online cost efficiency and avoiding online congestion problems.