BandwidthD tracks usage of TCP/IP network subnets and builds html files with graphs to display utilization. Charts are built by individual IPs, and by default display utilization over 2 day, 8 day, 40 day, and 400 day periods. Furthermore, each ip address’s utilization can be logged out at intervals of 3.3 minutes, 10 minutes, 1 hour or 12 hours in cdf format, or to a backend database server. HTTP, TCP, UDP, ICMP, VPN, and P2P traffic are color coded.

Bandwidthd now produces output in 2 ways. The first is as a standalone application that produces static html and png output every 200 seconds. The second is as a sensor that transmits it’s data to a backend database which is then reported on by dynamic php pages. The visual output of both is simular, but the database driven system allows for searching, filtering, multiple sensors and custom reports.

[ http://bandwidthd.sourceforge.net/ ]

Configuring BandwidthD during installation:

All graphic display of traffic ar saved in /var/lib/bandwidthd/htdocs:

Here is a look at Bndwidthd after running about 10 minutes: