OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-ac5d1e-0): addr:0e:fd:0c:56:f9:42
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-8abe63-0): addr:ee:66:51:9a:89:68
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ea:a3:ed:bc:81:73
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
