//udp
iperf -s -p 1234 -i 1 -u
iperf -c 192.168.0.2 -u -p 1234 -i 1 -b 8M -t 20
//tcp
iperf -s -p 1234 -i 1
iperf -c 192.168.0.2 -p 1234 -i 1 -t 50
//udp
iperf -s -p 1234 -i 1 -u
iperf -c 192.168.0.2 -u -p 1234 -i 1 -b 8M -t 20
//tcp
iperf -s -p 1234 -i 1
iperf -c 192.168.0.2 -p 1234 -i 1 -t 50