OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-194e4e-0): addr:ae:51:44:2c:14:d0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-044bba-0): addr:f2:d8:a6:8a:ac:f5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-b27929-0): addr:f2:34:65:8f:8c:01
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:3e:6b:3b:13:10:16
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
