OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:1a:e4:1d:b8:63:3d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:fa:09:db:6e:f9:99
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:da:6e:7a:62:32:f1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:e7:fd:cc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:e7:fd:cc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
