OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-a442ee-0): addr:da:42:2c:9c:83:54
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-7c8aef-0): addr:5e:5e:f6:3d:40:4d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-33d385-0): addr:8a:30:6f:89:d7:e1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:92:95:b5:ae:f3:e9
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
