OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:ea:c0:d5:32:41:8f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:f2:ab:0a:83:97:b8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(enp1s0): addr:52:54:00:a6:13:65
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan22): addr:de:a7:7a:40:8d:45
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:52:54:00:a6:13:65
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
