OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:82:2b:2e:5e:e7:8b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan23): addr:3e:e1:c2:be:31:d3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:7e:97:81:dc:7e:48
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:c2:7a:ed:93:b6:ae
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:c3:e1:88
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:c3:e1:88
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
