OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:02:45:39:cc:f4:34
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:aa:61:fb:6d:66:9a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:a6:5d:db:b2:6c:10
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:24:5c:be
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:24:5c:be
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
