OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-ef2171-0): addr:d6:5e:c7:59:bb:5c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-c24bec-0): addr:2e:aa:ad:f0:9a:53
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-fc69d3-0): addr:52:be:ca:a5:71:0d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:46:0d:8d:e7:96:64
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
