OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-71aaf7-0): addr:fe:70:18:99:dd:94
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-59a8b9-0): addr:72:35:0a:40:43:d2
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-bd097f-0): addr:42:1d:5d:25:7a:99
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:82:02:90:e1:03:5e
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
