OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:9a:6d:56:41:6d:08
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:02:ff:e4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:ee:58:f4:21:80:4b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:ea:a4:d5:75:4b:db
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:02:ff:e4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
