OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-1596c6-0): addr:46:d8:82:9e:e3:2a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:86:f7:75:40:27:30
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
