OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-9cf807-0): addr:de:46:50:c1:5a:81
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-db4c55-0): addr:a2:1f:2e:66:af:a4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:5e:7f:b6:c5:13:94
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
