OFPST_PORT_DESC reply (xid=0x2):
 1(eth1): addr:fa:16:3e:3c:34:d1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:26:a9:aa:5b:4b:70
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:46:ee:44:89:e9:1e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan21): addr:fe:cc:96:01:11:35
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:3c:34:d1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
