OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:b2:09:5d:5c:34:3e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:3a:e6:86:fc:f4:73
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:ea:5c:c0:f1:66:d0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:8b:32:4b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:8b:32:4b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
