OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-b34adc-0): addr:fa:a0:36:e9:cd:53
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:b2:97:6f:8e:3e:d6
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
