OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:0e:97:39:a9:54:24
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:66:ee:ce:7c:4e:0c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:76:8b:c2:64:83:b3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:df:58:d4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:df:58:d4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
