OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:9e:d7:3b:91:3d:30
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:f6:fd:25:26:9e:a8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:5e:26:60:48:85:1d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:28:73:a5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:28:73:a5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
