OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:92:8d:a2:9d:a5:f8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:c6:c2:a9:6f:5a:8f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:f2:b3:3b:87:40:03
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(enp1s0): addr:52:54:00:dd:8c:6e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:52:54:00:dd:8c:6e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
