OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-268699-0): addr:c2:12:92:90:47:4f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-6f73e5-0): addr:06:4f:3c:37:2a:9d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-9a0c8b-0): addr:f2:c1:ad:0e:99:cd
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:a2:ec:70:42:50:e9
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
