OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-b343eb-0): addr:9a:94:98:ad:9c:88
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-cd6fe2-0): addr:7e:80:9d:3a:95:e3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:f6:c4:31:73:62:65
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
