OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-092f06-0): addr:5a:aa:a9:2f:28:62
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-41380b-0): addr:aa:65:a2:d7:20:4c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ce:c2:e3:b2:b1:d5
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
