OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:8e:46:97:d9:6b:0c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:6e:ee:85:e7:3e:c7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:72:99:86:24:0d:40
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:05:f3:8d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:05:f3:8d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
