OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-ce396d-0): addr:ee:bc:db:de:cc:01
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-3ec1c3-0): addr:12:0b:0c:71:a4:77
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-2e3432-0): addr:56:5e:dc:d1:9e:b8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:b2:05:94:38:c3:2d
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
