OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-c26c7b-0): addr:5a:6a:e1:40:4e:ad
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:de:1d:8b:87:44:17
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
