OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:9d:ee:5c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:22:2e:10:53:54:59
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan21): addr:76:e1:e0:53:4e:d6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan20): addr:26:d0:70:38:46:3b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:9d:ee:5c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
