OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-90ae80-0): addr:92:3b:ff:28:d4:96
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-10cf98-0): addr:e2:50:08:10:c9:80
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ee:94:16:f2:a8:b1
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
