OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-449d60-0): addr:fa:21:65:39:f5:85
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-879e8a-0): addr:8e:88:a3:69:37:de
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:b6:c7:3f:85:33:33
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
