OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:3c:e4:93
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:6e:ac:64:d1:a6:ee
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:06:e3:22:e1:aa:ee
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:22:af:5b:71:98:97
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:82:30:9f:2c:e4:09
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:3c:e4:93
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
