OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-20db5e-0): addr:f2:1f:e4:8d:3e:67
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ca:ac:57:a8:ac:a7
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
