OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:22:67:d5:65:0e:2c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:b2:cf:a7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:9e:ab:6f:50:8b:a6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:42:05:45:18:e2:37
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:b2:cf:a7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
