OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:2a:53:67:2c:8d:df
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:a6:85:1d:42:3d:78
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:0e:91:32:63:8b:87
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:9c:af:3d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:9c:af:3d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
