OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-b4a8f4-0): addr:b2:5f:e2:03:b8:4c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-0ff73a-0): addr:a2:46:28:1a:5c:f4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-f2104f-0): addr:b2:ab:7a:74:d7:fd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:b6:fe:15:3c:b7:95
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
