Inter-|   Receive                                                |  Transmit
 face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
    lo: 66012002   28404    0    0    0     0          0         0 66012002   28404    0    0    0     0       0          0
  eth0: 1043368902  318610    0    0    0     0          0         0  3530538   38423    0    0    0     0       0          0
  eth1: 51113895   48589    0    0    0     0          0         0 37084599   39589    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: 35769440   34437    0    0    0     0          0         0 35620948   33471    0    0    0     0       0          0
vlan22:    1064      17    0    0    0     0          0         0      658       9    0    0    0     0       0          0
vlan21:    1008      16    0    0    0     0          0         0      658       9    0    0    0     0       0          0
vlan23:  574098     702    0    0    0     0          0         0   874977     671    0    0    0     0       0          0
vlan20:    1204      20    0    0    0     0          0         0      658       9    0    0    0     0       0          0
