OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-3eb3dc-0): addr:9e:35:3b:4a:bb:b8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-780a12-0): addr:02:f8:4a:83:a4:72
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:fa:f2:de:4f:5b:9d
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
