OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:92:ca:ee:4c:a9:51
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:19:80:fa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:36:40:09:dc:ee:7e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:86:e5:6e:de:3f:bc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:19:80:fa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
