OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:b5:1d:74
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:82:5f:b5:cc:8d:78
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:86:a0:a3:70:d8:28
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:72:f4:31:54:75:05
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:b6:78:5d:7e:fa:f3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:b5:1d:74
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
