OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:52:2e:b6:0e:7a:a9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:7a:21:8e:3e:cf:7b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:4e:b0:16:d9:d8:88
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(enp1s0): addr:52:54:00:bf:2f:41
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:52:54:00:bf:2f:41
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
