OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-d8837b-0): addr:6a:53:bf:3e:42:79
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-7fa596-0): addr:f6:13:2b:62:3f:c8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-49cde4-0): addr:16:a7:56:e8:ed:70
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:de:76:e9:91:c4:a1
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
