OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:8f:c7:06
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:76:39:5b:39:80:4e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:de:af:a1:71:59:3e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:1a:1d:1e:f8:d1:79
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:8f:c7:06
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
