OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-eff819-0): addr:a2:42:3d:55:d6:fe
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:5e:61:6d:e6:9f:4b
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
