OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-d8837b-0): addr:de:b6:c7:02:f1:b6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-7fa596-0): addr:f2:32:98:3d:52:ed
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-395dd3-0): addr:ce:e3:35:ee:8b:37
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:be:6c:15:3c:fc:0b
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
