OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-3746d4-0): addr:a2:9e:02:fe:2b:c1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:3a:1f:b5:96:b1:b7
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
