OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-63ef1f-0): addr:be:52:5c:ff:19:ef
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-99bc29-0): addr:2a:62:6c:34:9d:d9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:e6:6e:cc:c3:2e:b4
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
