OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-d15dd6-0): addr:8e:17:05:3b:f4:f5
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-13d383-0): addr:96:8f:b6:a0:b4:91
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:76:60:e6:aa:00:b3
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
