OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-977d18-0): addr:1e:f6:86:ac:bc:e8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:4e:2b:24:ec:8b:42
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
