OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-45f4d3-0): addr:76:f4:a1:7b:a2:aa
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:4e:b9:68:c1:cd:3f
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
