OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-5db10b-0): addr:a2:88:5f:43:46:81
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-834afe-0): addr:02:c5:f7:b8:09:00
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ae:d2:4d:7c:81:25
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
