OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:54:2c:fd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:2e:33:30:93:6c:c8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:be:b7:95:99:72:ca
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:2a:0b:56:36:d4:67
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:42:75:0e:49:d1:46
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:54:2c:fd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
