OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:52:0d:6f:da:b3:b0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan23): addr:3a:ab:0f:f4:4a:82
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:ae:1c:ac:44:a2:d8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:76:13:71:32:ab:17
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:e1:7f:f8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:e1:7f:f8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
