OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-f8e70e-0): addr:b2:18:d9:d6:d4:48
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-044bba-0): addr:7a:9f:63:43:df:40
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-194e4e-0): addr:a2:ec:2c:b8:be:71
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:86:61:bb:10:a3:67
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
