OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-bfdd72-0): addr:26:e4:64:a9:16:e4
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-b95886-0): addr:62:15:2f:3a:62:3d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-17f118-0): addr:42:63:56:9c:bf:20
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:aa:fc:65:d1:b3:d1
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
