OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-3b817c-0): addr:ae:2d:df:69:fb:d8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-7db753-0): addr:62:64:30:e8:df:f1
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-78438f-0): addr:3e:29:58:b0:a1:c3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:12:f0:ce:76:f4:6a
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
