OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-a62955-0): addr:0a:d4:da:92:a4:94
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 4(patch-br-int-to): addr:2a:fa:9f:ed:c4:bb
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:e6:b3:24:dc:ab:af
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
