OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-150f59-0): addr:c6:25:7d:f9:85:8f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:22:e4:c6:4d:a1:3c
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
