Inter-|   Receive                                                |  Transmit
 face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
    lo:    2360      30    0    0    0     0          0         0     2360      30    0    0    0     0       0          0
  eth0: 1169629687  458382    0    0    0     0          0         0  4503514   53685    0    0    0     0       0          0
  eth1: 89771250   56244    0    0    0     0          0         0  3508897   32908    0    0    0     0       0          0
ovs-system:       0       0    0    0    0     0          0         0        0       0    0    0    0     0       0          0
 br-ex: 68219998   31010    0    0    0     0          0         0  2709862   25449    0    0    0     0       0          0
vlan22:     252       7    0    0    0     0          0         0      216       4    0    0    0     0       0          0
vlan21:     588      13    0    0    0     0          0         0      216       4    0    0    0     0       0          0
vlan20:     588      13    0    0    0     0          0         0      216       4    0    0    0     0       0          0
