OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:b2:6b:93:f5:db:48
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan20): addr:e2:57:5f:4f:74:bb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:d2:72:82:1d:d2:f7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:b4:72:7c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:b4:72:7c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
