OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:e6:99:e5:b2:f7:c3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:f6:9e:0e:e8:3b:67
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:ce:7e:ce:88:c5:6c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:d4:10:eb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:d4:10:eb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
