OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-7f404a-0): addr:ce:5c:87:af:82:06
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-f0bd48-0): addr:4a:e9:f9:4f:43:b4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-74526b-0): addr:be:1f:e1:78:95:b4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:0e:ad:fc:9e:c3:1c
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
