OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-5b2b96-0): addr:7a:1a:56:2c:55:f3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-c21396-0): addr:02:c9:52:a6:db:21
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-890783-0): addr:22:00:c6:dd:e1:d6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:c6:f3:a4:09:09:5d
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
