OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:c6:78:cf:cf:c3:96
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:96:70:a4:85:38:ac
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:c6:24:c0:c1:6f:14
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:59:6c:be
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:59:6c:be
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
