Pathneck is an active probing tool that can detect bottleneck location of
network path.
It only needs single end control, and has relatively small probing overhead
(33.6KB for one probing in the default setting).

WWW: http://gs274.sp.cs.cmu.edu/www/pathneck/

PR: ports/90801
Submitted by: Babak Farrokhi <babak@farrokhi.net>