OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-8bc1ff-0): addr:36:e7:57:b3:4d:7d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:36:8e:c4:2d:f6:36
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
