OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-90f8bc-0): addr:be:1d:fa:a4:39:4d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:4e:2a:38:2a:74:03
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
