root@kvm-hv6:/etc/network/if-up.d# iperf -c 172.20.0.6 -i1 -t 10
------------------------------------------------------------
Client connecting to 172.20.0.6, TCP port 5001
TCP window size: 165 KByte (default)
------------------------------------------------------------
[ 3] local 172.20.0.25 port 44485 connected with 172.20.0.6 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 81.5 MBytes 684 Mbits/sec
[ 3] 1.0- 2.0 sec 81.1 MBytes 681 Mbits/sec
[ 3] 2.0- 3.0 sec 81.0 MBytes 679 Mbits/sec
[ 3] 3.0- 4.0 sec 81.0 MBytes 679 Mbits/sec
[ 3] 4.0- 5.0 sec 80.9 MBytes 678 Mbits/sec
[ 3] 5.0- 6.0 sec 84.8 MBytes 711 Mbits/sec
[ 3] 6.0- 7.0 sec 89.2 MBytes 749 Mbits/sec
[ 3] 7.0- 8.0 sec 89.4 MBytes 750 Mbits/sec
[ 3] 8.0- 9.0 sec 90.0 MBytes 755 Mbits/sec
[ 3] 9.0-10.0 sec 89.5 MBytes 751 Mbits/sec
[ 3] 0.0-10.0 sec 848 MBytes 711 Mbits/sec
root@kvm-hv6:/etc/network/if-up.d# iperf -c 172.20.0.7 -i1 -t 10
------------------------------------------------------------
Client connecting to 172.20.0.7, TCP port 5001
TCP window size: 165 KByte (default)
------------------------------------------------------------
[ 3] local 172.20.0.25 port 46136 connected with 172.20.0.7 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 105 MBytes 884 Mbits/sec
[ 3] 1.0- 2.0 sec 106 MBytes 889 Mbits/sec
[ 3] 2.0- 3.0 sec 106 MBytes 892 Mbits/sec
[ 3] 3.0- 4.0 sec 102 MBytes 854 Mbits/sec
[ 3] 4.0- 5.0 sec 99.5 MBytes 835 Mbits/sec
[ 3] 5.0- 6.0 sec 100 MBytes 842 Mbits/sec
[ 3] 6.0- 7.0 sec 104 MBytes 870 Mbits/sec
[ 3] 7.0- 8.0 sec 100 MBytes 839 Mbits/sec
[ 3] 8.0- 9.0 sec 104 MBytes 868 Mbits/sec
[ 3] 9.0-10.0 sec 106 MBytes 888 Mbits/sec
[ 3] 0.0-10.0 sec 1.01 GBytes 866 Mbits/sec