OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:ea:72:8e:e8:5e:0e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:d2:7d:9b:a4:49:32
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:ca:04:ab:97:d2:ba
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:62:30:47
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:62:30:47
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
