OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:fe:67:c0:78:6d:99
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:62:c8:10:11:38:6c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:02:aa:26:62:84:57
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:9c:75:00
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:9c:75:00
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
