OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-1685b9-0): addr:72:24:b4:92:ae:a2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-a37c0e-0): addr:62:2a:02:e2:27:41
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-8794ae-0): addr:5a:45:fb:c6:70:5c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:2a:a3:7d:5a:85:70
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
