OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:b6:f5:9a:ec:7b:af
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:9a:50:5d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:ba:ef:20:0f:54:e8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:1a:14:46:22:8f:ab
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:f2:85:cc:c9:92:c7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:9a:50:5d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
