OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:fe:a5:72:ed:f8:5e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:de:e5:85:b5:04:b4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:0e:81:6a:0f:f6:e1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:2b:b4:2e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:2b:b4:2e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
