OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:ee:3f:f3:e9:b2:dc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:96:28:08:b4:60:55
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:06:0a:a2:83:33:55
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:d6:28:e0:2d:4b:95
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:19:b1:af
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:19:b1:af
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
