na 2 Eth

# na 2 Eth
# iperf3 -c 172.16.10.1 -t 30 -i 10 -f m
Connecting to host 172.16.10.1, port 5201
[  5] local 172.16.10.2 port 56870 connected to 172.16.10.1 port 5201
[ ID] Interval           Transfer     Bitrate         Retr  Cwnd
[  5]   0.00-10.00  sec  1.55 GBytes  1331 Mbits/sec  41078    236 KBytes
[  5]  10.00-20.00  sec  1.53 GBytes  1317 Mbits/sec  25665    235 KBytes
[  5]  20.00-30.00  sec  1.53 GBytes  1314 Mbits/sec  37212    147 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-30.00  sec  4.61 GBytes  1321 Mbits/sec  103955             sender
[  5]   0.00-30.00  sec  4.61 GBytes  1320 Mbits/sec                  receiver

iperf Done.

# iperf3 -c 172.16.10.1 -t 30 -i 10 -f m -R
Connecting to host 172.16.10.1, port 5201
Reverse mode, remote host 172.16.10.1 is sending
[  5] local 172.16.10.2 port 56874 connected to 172.16.10.1 port 5201
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-10.00  sec  2.19 GBytes  1879 Mbits/sec
[  5]  10.00-20.00  sec  2.19 GBytes  1881 Mbits/sec
[  5]  20.00-30.00  sec  2.19 GBytes  1881 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-30.00  sec  6.57 GBytes  1881 Mbits/sec    0             sender
[  5]   0.00-30.00  sec  6.57 GBytes  1880 Mbits/sec                  receiver

iperf Done.