OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:5a:2a:5f:41:4a:ac
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:09:65:4e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:7e:24:9d:e0:4a:e9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:92:cc:0d:3e:58:7a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:ca:4b:fa:c6:25:9c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:09:65:4e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
