OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-9fcf44-0): addr:1e:f3:6a:21:da:9f
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-39acb0-0): addr:0e:89:74:1e:24:da
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:76:95:b1:ab:f8:06
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
