OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:8a:6e:23:5d:8a:6d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:a2:02:46:06:f9:a3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:16:cc:c2:cb:1b:85
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:b8:14:42
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:ae:03:54:6a:c0:5b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:b8:14:42
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
