OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-ff0c0f-0): addr:3e:1d:f5:2d:d6:f8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-01f1e5-0): addr:86:68:07:8c:ef:d9
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:9e:d7:11:fd:8f:f9
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
