OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-6db8e3-0): addr:9e:04:34:21:8e:7d
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-59bb5f-0): addr:ce:18:95:ac:08:3e
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:c6:f1:e8:89:ee:3f
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
