OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-7ccbef-0): addr:92:2e:5e:69:75:02
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ee:0c:a8:0f:74:b5
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
