OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-1f332b-0): addr:52:8f:56:0a:4e:b3
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-bb0ad2-0): addr:ae:b4:f7:e0:1c:ec
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:e6:05:2f:24:4f:52
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
