OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-dc3a83-0): addr:b6:f9:54:11:25:ee
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:8e:b7:0a:5f:13:1d
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
