OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-fad429-0): addr:ba:3e:f2:b0:28:a0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-56559d-0): addr:0a:4d:61:18:c9:c8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:56:54:ce:f7:55:f4
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
