OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:16:1a:39:b6:44:4b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:56:88:5a:df:09:90
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:fa:74:11:65:35:b4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:0a:dc:a5:c3:ad:8b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:cd:58:4e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:cd:58:4e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
