OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:66:e9:08:d4:0a:f5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:86:f6:0b:93:b0:96
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:56:7b:04:b1:ba:43
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:71:8e:38
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:71:8e:38
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
