OFPST_PORT_DESC reply (xid=0x2):
 1(vlan21): addr:ce:f2:c8:f7:54:4c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan23): addr:06:92:2e:1b:18:24
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:aa:e2:48:0f:d2:b6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan22): addr:ea:d1:ce:67:2a:9b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:cc:97:c9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-d): addr:1a:1c:6b:b4:4d:aa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:cc:97:c9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
