OFPST_PORT_DESC reply (xid=0x2):
 1(vlan23): addr:92:d6:e4:56:b5:24
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:12:06:a2:8f:c3:3a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(eth1): addr:fa:16:3e:27:92:90
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:4a:8d:e2:12:1b:28
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:c6:a3:7e:f5:98:20
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:27:92:90
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
