nio

[Lasse Jespersen]

this script will give a second-by-second view of the bandwidth consumed
on any given
network interface, if any -  if none, it will not print any output. it
timestamps each line of output, and can, if you're thus inclined ( ... )
be used to log how much the network was used over a period of time. the
output from nio, such as it is, is not difficult to parse if need be.

i don't rightly know if this belongs in ports, but this script sees
widespread usage among the freebsdzoids i know..

nio: http://www.init6.org/~lj/nio

-- 
Lasse Jespersen <elj at init6.org>
www.init6.org