OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-9a0c8b-0): addr:ea:71:31:9e:0f:34
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-6f73e5-0): addr:f6:a1:06:7c:e8:c8
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-b58ac6-0): addr:c6:62:28:b4:1f:01
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:3e:5e:cc:2a:fa:39
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
