OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:aa:f5:d1:c4:86:6e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:62:d1:ce:0c:b4:ec
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:7e:a2:86:f5:2b:fc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:e2:b6:2f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:e2:b6:2f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
