OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:c2:3d:2a:56:86:87
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:b1:f4:d8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:f6:40:93:af:dc:42
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:9e:45:3a:39:64:4b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan20): addr:da:a7:a9:f6:43:34
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:b1:f4:d8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
