We tested in Rancher environment with RancherOS hosts.
We found that network between 2 container in different server has very small Bandwidth
Any ideas for this situation?
There is some test below with iperf.
cross-host (container to container)
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 0.02 GBytes 0.20 Gbits/sec
[ 3] 1.0- 2.0 sec 0.02 GBytes 0.20 Gbits/sec
[ 3] 2.0- 3.0 sec 0.02 GBytes 0.21 Gbits/sec
[ 3] 3.0- 4.0 sec 0.03 GBytes 0.22 Gbits/sec
[ 3] 4.0- 5.0 sec 0.03 GBytes 0.22 Gbits/sec
[ 3] 5.0- 6.0 sec 0.02 GBytes 0.21 Gbits/sec
[ 3] 6.0- 7.0 sec 0.03 GBytes 0.22 Gbits/sec
[ 3] 0.0- 7.0 sec 0.17 GBytes 0.21 Gbits/sec
cross-host (VM to VM)
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 1.0 sec 0.11 GBytes 0.96 Gbits/sec
[ 3] 1.0- 2.0 sec 0.11 GBytes 0.95 Gbits/sec
[ 3] 2.0- 3.0 sec 0.11 GBytes 0.94 Gbits/sec
[ 3] 3.0- 4.0 sec 0.11 GBytes 0.94 Gbits/sec
[ 3] 4.0- 5.0 sec 0.11 GBytes 0.95 Gbits/sec
[ 3] 5.0- 6.0 sec 0.11 GBytes 0.94 Gbits/sec
[ 3] 6.0- 7.0 sec 0.11 GBytes 0.94 Gbits/sec
[ 3] 0.0- 7.0 sec 0.77 GBytes 0.94 Gbits/sec