OFPST_PORT_DESC reply (xid=0x2):
 2(ovn-49cdcb-0): addr:ea:b9:b5:f1:0d:ef
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:2e:2e:80:f0:4e:45
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
