OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-b47474-0): addr:8e:df:dd:16:5a:2a
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-652388-0): addr:7e:6f:a1:ef:3b:45
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:d6:82:ba:8d:a4:e8
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
