OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-e15f55-0): addr:96:28:97:0f:54:27
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-fa6f2e-0): addr:76:dc:f7:02:8a:79
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-93db78-0): addr:0a:95:53:b4:32:58
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ba:52:27:71:00:ff
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
