http://freshmeat.net/redir/iperf/30604/url_tgz/iperf-1.7.0-source.tar.gz root@chilibeans:~/iperf-1.7.0# iperf -s -c localhost ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 64.0 KByte (default) ------------------------------------------------------------ [ 6] local 127.0.0.1 port 5001 connected with 127.0.0.1 port 1952 [ ID] Interval Transfer Bandwidth [ 6] 0.0-10.0 sec 482 MBytes 404 Mbits/sec root@chilibeans:~# iperf -c localhost ------------------------------------------------------------ Client connecting to localhost, TCP port 5001 TCP window size: 64.0 KByte (default) ------------------------------------------------------------ [ 5] local 127.0.0.1 port 1952 connected with 127.0.0.1 port 5001 [ ID] Interval Transfer Bandwidth [ 5] 0.0-10.0 sec 482 MBytes 404 Mbits/sec