OFPST_PORT_DESC reply (xid=0x2):
 1(vlan22): addr:56:c3:f3:2d:13:17
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:92:10:62:2f:22:64
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:f2:29:c1:03:3b:02
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:89:0b:47
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ex): addr:fa:16:3e:89:0b:47
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
