OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-b71cb9-0): addr:ce:e3:62:f4:e1:cf
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:fe:27:e3:b1:70:23
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
