OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:2e:3d:75:4a:32:13
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:0a:7c:a7:9e:d1:04
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:ee:b5:75:a2:66:fe
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:4d:68:05
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:4d:68:05
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
