OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-d92070-0): addr:66:49:da:a6:5e:4d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-ac7ec0-0): addr:52:80:3d:81:8a:a1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:f2:06:3a:04:e3:94
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
