OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-92808e-0): addr:1e:4c:40:fb:9f:5a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-eda59e-0): addr:96:cb:64:7c:9c:7a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:8e:97:3f:da:aa:5e
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
