OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:d2:88:05:37:a7:ea
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:8e:7b:05:b0:66:05
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:36:15:c3:70:ba:12
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:09:ca:af
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:09:ca:af
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
