OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:8e:8d:3b:96:d1:87
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:92:ea:3c:0e:b9:f7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:5a:2a:21:a2:8e:68
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:99:8a:db
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:99:8a:db
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
