OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:f6:0a:a2:ab:56:d9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:5e:d9:ad:3a:98:49
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:e6:40:da:36:4f:d7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:9b:cd:fb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:9b:cd:fb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
