OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-a6797b-0): addr:9e:ac:7c:1d:aa:55
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:b6:0b:a0:42:fd:a1
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
