OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:a6:c1:d6:d3:00:7d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan23): addr:da:68:b2:0b:4f:e0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:fa:90:08:e9:60:fa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:72:ea:85:c0:93:81
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:c6:be:20
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:c6:be:20
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
