OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:6e:b0:36:7f:f1:93
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:ba:32:54:b4:cc:d0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:b2:ce:d1:d3:04:c8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:15:38:bc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:15:38:bc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
