mininet bandwidth tests

mininet@mininet-vm:~$ sudo mn --custom 2swCon.py --topo=mytopo --controller=remote,ip=192.168.57.1,port=6653 --switch=ovsk --mac
*** Creating network
*** Adding controller
*** Adding hosts:
h1 h2
*** Adding switches:
s1 s2
*** Adding links:
(h1, s1) (s1, s2) (s2, h2)
*** Configuring hosts
h1 h2
*** Starting controller
c0
*** Starting 2 switches
s1 s2
*** Starting CLI:
mininet> h1 ping -c 4 h2
PING 10.0.0.2 (10.0.0.2) 56(84) bytes of data.
^C
--- 10.0.0.2 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 1999ms

mininet> h1 ping -c 4 h2
PING 10.0.0.2 (10.0.0.2) 56(84) bytes of data.
64 bytes from 10.0.0.2: icmp_seq=1 ttl=64 time=0.466 ms
64 bytes from 10.0.0.2: icmp_seq=2 ttl=64 time=0.120 ms
64 bytes from 10.0.0.2: icmp_seq=3 ttl=64 time=0.096 ms
64 bytes from 10.0.0.2: icmp_seq=4 ttl=64 time=0.095 ms

--- 10.0.0.2 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 2999ms
rtt min/avg/max/mdev = 0.095/0.194/0.466/0.157 ms
mininet> xterm h1
Error: Cannot connect to display
mininet> iperf
*** Iperf: testing TCP bandwidth between h1 and h2
Waiting for iperf to start up...*** Results: ['239 Kbits/sec', '850 Kbits/sec']
mininet> h1 ping -c 4 h2
PING 10.0.0.2 (10.0.0.2) 56(84) bytes of data.
64 bytes from 10.0.0.2: icmp_seq=1 ttl=64 time=0.420 ms
64 bytes from 10.0.0.2: icmp_seq=2 ttl=64 time=0.103 ms
64 bytes from 10.0.0.2: icmp_seq=3 ttl=64 time=0.102 ms
64 bytes from 10.0.0.2: icmp_seq=4 ttl=64 time=0.104 ms

--- 10.0.0.2 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3002ms
rtt min/avg/max/mdev = 0.102/0.182/0.420/0.137 ms
mininet> iperf
*** Iperf: testing TCP bandwidth between h1 and h2
*** Results: ['9.51 Mbits/sec', '12.5 Mbits/sec']
mininet>