OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:ee:fb:19:36:18:1f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:82:f4:f4:8c:31:43
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:fa:2f:61:e3:b3:83
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:51:77:f4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:51:77:f4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
