OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-bbbaff-0): addr:3a:a8:c3:34:d8:d3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-6236ce-0): addr:ce:70:3b:90:1e:14
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:72:e4:1f:47:99:ae
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
