OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:3a:78:e4:ac:ab:46
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:c6:88:22:9e:cb:ad
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:3a:97:81:0b:f6:39
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:a6:4d:3e:b0:a6:07
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:8e:c2:f5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:8e:c2:f5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
