OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:0e:ac:66:23:b8:b5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:ae:bc:e3:ef:1b:59
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:92:51:d8:e1:b8:90
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:a2:5f:78:e8:d5:2c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:5d:ee:84
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:5d:ee:84
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
