OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-cc140a-0): addr:22:ef:b3:b8:a9:7c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-44bd5b-0): addr:fe:9f:5f:ae:8d:34
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-3f5a0f-0): addr:ae:07:87:f2:35:5c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:a6:2f:70:51:64:79
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
