OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-82cd4f-0): addr:ca:b1:68:ff:41:49
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:1a:b2:ed:d1:0e:98
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
