OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:5e:8d:fe:d4:bd:03
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:03:27:cd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:1a:87:bd:09:98:d9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:2a:18:af:ba:0f:44
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:03:27:cd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
