OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-5b2b96-0): addr:4a:cb:27:27:cd:69
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-235d3e-0): addr:56:e2:ef:93:67:c5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-c21396-0): addr:92:29:b0:db:f1:9c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:52:e6:a2:95:26:9e
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
