OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:0e:08:d7:01:ac:6b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:2a:f3:fb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:0a:df:2f:89:43:c0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:ee:77:83:b0:40:df
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan20): addr:62:3f:b8:43:df:38
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:2a:f3:fb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
