OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-ec0018-0): addr:46:62:aa:7c:b4:9c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:5e:7a:9a:9e:34:c4
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
