OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-79d1ac-0): addr:1a:14:ba:dc:a5:1b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-cc1351-0): addr:a6:fb:3f:02:42:c5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:32:47:a0:88:10:85
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
