sntop - 1.4.3-4+b2 main

Simple network top (sntop) is a curses-based console utility,
in the spirit of top, that polls network hosts at a regular interval to
determine their connectivity and displays the results in a pretty format.
Advanced features, such as automatic HTML generation of results,
secure terminal mode, execution of external file on connectivity change,
and user/system configure files, are supported.