OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:d6:50:96:05:e7:12
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:e6:4d:b9:83:4d:7c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:32:64:a2:10:30:ab
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:01:b2:bb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:01:b2:bb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
