OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:42:90:75:72:bd:10
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:02:35:a1:8d:a9:89
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:f6:c1:0b:d7:e9:f4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:b5:45:2d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:b5:45:2d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
