OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:a8:0c:4c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:56:bc:75:c9:9b:e0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:7a:af:e3:4e:d8:6a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:1a:f4:f4:43:94:3d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:c6:98:85:89:81:ac
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:a8:0c:4c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
