OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:c2:ab:f4:99:20:0d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:1a:90:20:34:ee:bc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:da:65:96:fd:cb:a5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:e9:3c:c0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:e9:3c:c0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
