OFPST_PORT_DESC reply (xid=0x2):
 2(ovn-5b9188-0): addr:06:b7:7e:19:e9:09
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:a6:f0:06:81:8d:ba
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
