OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:2a:f9:8a:11:38:c9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(eth1): addr:fa:16:3e:d9:ce:d0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan22): addr:aa:75:b0:c7:59:39
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan23): addr:3e:4e:f4:17:b6:94
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:0a:7e:12:a1:7c:64
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-d): addr:7e:6c:35:85:01:fc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:d9:ce:d0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
