OFPST_PORT_DESC reply (xid=0x2):
 1(vlan20): addr:42:b2:3e:68:80:49
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(vlan22): addr:2a:c9:68:74:90:be
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(vlan23): addr:46:72:4a:0c:a3:3c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(eth1): addr:fa:16:3e:98:e6:05
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 5(vlan21): addr:fe:ac:a0:17:c7:fe
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 6(patch-provnet-e): addr:ee:f8:d6:3d:ca:58
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-ctlplane): addr:fa:16:3e:98:e6:05
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
