OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:ae:eb:c4:29:d9:11
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:ba:c3:b6:ed:b8:e8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(eth1): addr:fa:16:3e:8f:33:5b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:8a:26:06:a9:6b:87
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:8f:33:5b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
