OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:5a:65:af:52:51:db
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:3a:20:1b:8a:d1:bc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:aa:ee:be:f7:ba:5b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:9d:07:62
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:9d:07:62
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
