OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:36:4b:2d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:12:4b:d5:8c:5a:b5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:ca:6a:76:ca:97:54
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:5e:c4:2a:02:1c:aa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan20): addr:7e:ad:a5:76:38:dc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:36:4b:2d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
