OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:ce:9d:f5:00:62:24
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:9a:3c:2d:e5:d1:12
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:de:58:77:3d:8a:c0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:b3:2b:c1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:b3:2b:c1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
