OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-10d863-0): addr:ae:1d:1b:c3:ba:52
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-43d80c-0): addr:76:6c:b9:fc:0f:19
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:5a:88:c8:d1:38:cf
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
