OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-c6a037-0): addr:9e:43:3d:d9:38:fc
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-48738a-0): addr:a6:fa:e6:ac:be:4c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:e6:7b:8a:a4:9c:2d
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
