OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-ab97ad-0): addr:b6:00:3f:96:a0:cf
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:82:4f:f5:33:c2:52
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
