OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:2e:be:34:a3:26:ae
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:b2:7b:f0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:76:53:e4:83:d0:da
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:2a:5c:43:67:17:9f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:ae:4f:f9:8f:ac:8b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:b2:7b:f0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
