OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-16940e-0): addr:e2:ad:c2:c7:5c:1f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-54c1a2-0): addr:d6:f8:c2:cf:99:07
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:12:ce:59:37:dc:c2
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
