OFPST_PORT_DESC reply (xid=0x2):
 1(vlan23): addr:46:c4:48:a9:4b:2b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:6e:09:ed:cd:b0:91
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:c6:0b:c5:b4:0f:35
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:34:5e:e2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan20): addr:42:7c:18:ef:6b:60
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-0): addr:7e:4d:f6:36:b3:88
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:34:5e:e2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
