OFPST_PORT_DESC reply (xid=0x2):
 1(vlan23): addr:8e:5c:3a:26:7e:d3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan21): addr:8e:5f:82:15:e1:fd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan20): addr:5a:c4:41:59:61:62
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(vlan22): addr:1e:ac:6e:71:21:3d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(eth1): addr:fa:16:3e:40:ff:8e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-4): addr:22:40:c5:34:23:a6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:40:ff:8e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
