OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-e9717b-0): addr:96:a1:77:a7:f6:0e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-539cfa-0): addr:aa:a9:ad:3c:a6:01
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-d80bc7-0): addr:ce:7c:fd:27:7c:e7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:92:f5:17:0f:61:45
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
