OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-f13c8e-0): addr:f6:0f:92:bd:c0:89
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-90b35d-0): addr:3a:cb:1f:26:46:74
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-9c4f18-0): addr:76:5d:1a:6f:ee:2a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:5a:96:8a:16:1b:5b
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
