OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-66cd94-0): addr:b6:88:a7:a6:ec:4e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-cc939b-0): addr:9a:d5:8c:4a:46:2d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:62:46:82:63:44:4b
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
