OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-e95de2-0): addr:4a:da:04:11:ec:32
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-e3793b-0): addr:4a:90:18:68:40:05
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-3d4ba4-0): addr:96:50:70:cd:c7:97
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:72:0d:07:31:a4:c1
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
