OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:aa:0d:41:69:1a:76
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:c6:ae:d8:75:60:ae
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:e6:c5:7c:b3:ac:fd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:a7:42:fa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:a7:42:fa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
