OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-a901be-0): addr:3a:7b:cb:0a:0f:54
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-d032c5-0): addr:ae:a2:1e:d8:a9:b5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-96b682-0): addr:3a:3d:07:f3:0b:ba
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:02:e6:46:21:82:a0
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
