OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-79d1ac-0): addr:3e:75:8f:30:28:df
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-dea957-0): addr:fe:30:eb:34:25:c9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:26:bf:01:8a:54:1b
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
