OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-5b27c0-0): addr:5a:f3:4a:35:ab:7f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-70f20a-0): addr:0e:27:5f:8c:50:99
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:02:6d:e2:6e:81:e8
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
