OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:8a:7e:b6:c6:ac:f2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:46:21:d1:84:13:de
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:fa:83:63:b6:af:66
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(enp1s0): addr:52:54:00:06:b0:86
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:52:54:00:06:b0:86
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
