OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:32:67:e2:1b:3b:8c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:62:99:08:f4:0a:e4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:d2:9f:6e:29:4a:b2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:83:77:42
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:83:77:42
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
