bmon is a portable bandwidth monitor and rate estimator running on various operating systems. It supports various input methods for different architectures. Various output modes exist including an interactive curses interface, lightweight HTML output but also formatable ASCII output.

Statistics may be distributed over a network using multicast or unicast and collected at some point to generate a summary of statistics for a set of nodes.

[ http://people.suug.ch/~tgr/bmon/ ]