OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:02:94:09:c5:62:6f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:f2:2f:d2:bd:34:6d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:7e:ba:37:20:3e:24
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:75:05:f0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:75:05:f0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
