OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-4a37a0-0): addr:56:95:bb:79:1e:4b
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-0e9f3e-0): addr:8e:7a:1a:dc:28:f6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-27a42d-0): addr:16:ae:11:18:5d:27
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:1e:f4:14:f2:d4:68
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
