OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:2a:7f:dc:a2:fd:36
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:26:25:d9:a3:34:2b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:9e:af:06:7b:3e:39
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:02:d4:06:8a:3a:f8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:dd:87:25
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:dd:87:25
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
