OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:56:ef:53:ca:a5:ac
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:bc:57:26
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:42:0f:b0:2d:62:c4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:0e:18:ff:6f:7b:1c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan23): addr:4e:18:78:68:70:d2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:bc:57:26
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
