OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-9420da-0): addr:72:f5:b0:c9:1f:41
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-d5d2bd-0): addr:da:ac:69:74:01:08
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:7a:42:e6:88:cf:47
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
