OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-4d5802-0): addr:76:ce:6b:7f:85:89
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-c336f8-0): addr:1a:d8:ab:c9:af:c8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:72:6e:a4:09:c4:84
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
