OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:3a:37:a5:80:e9:33
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan23): addr:a6:c3:3d:85:80:71
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:c6:fe:ea:eb:89:3c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:b6:5d:96:25:ca:f0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:16:31:53
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:16:31:53
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
