OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-d254f5-0): addr:46:c9:25:25:02:ef
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-6e39f0-0): addr:2e:95:54:e8:f5:02
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-416435-0): addr:22:7e:c1:c5:20:2f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:7a:3e:4e:44:fa:c8
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
