OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:02:95:1a:67:4b:84
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:d0:67:33
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:86:cf:38:09:b5:2a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:7e:6f:10:9d:89:78
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:d0:67:33
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
