OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-18a698-0): addr:82:be:65:ad:bb:e8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-b4728f-0): addr:d2:48:09:52:3b:9e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:92:83:f8:be:54:6e
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
