Iperf
<networking, tool> A tool to measure maximum
TCP bandwidth, allowing the tuning of various parameters and
UDP characteristics.
Iperf reports bandwidth, delay jitter, and
datagram loss.
An
IPv6 version is also available.
Current version: 1.7.0, as of 2004-01-18.
Iperf Home (http://dast.nlanr.net/Projects/Iperf/).
