OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:62:21:23:62:ee:ff
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:da:63:7e:82:44:e3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:36:05:47:42:66:81
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:a6:0a:55:4a:01:e8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:b5:76:3b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:b5:76:3b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
