blackbinary@Delany ~/Downloads/iperf-2.0.5-i686-apple-darwin10.5.0 $ netio -t azrael

NETIO - Network Throughput Benchmark, Version 1.31
(C) 1997-2010 Kai Uwe Rommel

TCP connection established.
Packet size  1k bytes:  106.68 MByte/s Tx,  101.19 MByte/s Rx.
Packet size  2k bytes:  109.27 MByte/s Tx,  108.52 MByte/s Rx.
Packet size  4k bytes:  110.93 MByte/s Tx,  111.66 MByte/s Rx.
Packet size  8k bytes:  111.26 MByte/s Tx,  111.78 MByte/s Rx.
Packet size 16k bytes:  111.11 MByte/s Tx,  111.67 MByte/s Rx.
Packet size 32k bytes:  111.32 MByte/s Tx,  111.17 MByte/s Rx.
Done.

blackbinary@Delany ~/Downloads/iperf-2.0.5-i686-apple-darwin10.5.0 $ ./iperf -w 128M -c azrael
------------------------------------------------------------
Client connecting to azrael, TCP port 5001
TCP window size:  129 KByte (WARNING: requested  128 MByte)
------------------------------------------------------------
[  5] local 172.20.20.59 port 53830 connected with 172.20.20.12 port 5001
[ ID] Interval       Transfer     Bandwidth
[  5]  0.0-10.0 sec   219 MBytes   184 Mbits/sec