OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-7510b7-0): addr:aa:ba:6f:89:15:33
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:c6:21:e2:4e:cb:71
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
