OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:6e:12:ad:d5:9e:78
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:76:b6:4c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:2a:c0:e9:bd:4c:ab
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:96:c5:70:e0:f0:2f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:76:b6:4c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
