OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-6ed228-0): addr:fa:b7:70:3b:bc:e6
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-62d0db-0): addr:ca:30:36:3e:3f:d7
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ea:96:b2:e3:fd:45
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
