OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-164557-0): addr:ba:61:eb:0b:f5:78
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-bc4823-0): addr:02:60:ee:9f:55:37
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:86:00:cb:38:aa:51
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
