OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-5cbf2a-0): addr:72:4b:2f:34:92:df
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-e895a6-0): addr:62:43:ee:df:c3:1c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:7a:bc:96:69:d5:ad
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
