OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-415e77-0): addr:8a:2e:fa:3f:1c:40
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:e6:fc:6a:21:7f:30
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
