OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-740e9e-0): addr:46:0e:47:d4:c2:24
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-884422-0): addr:76:d8:13:59:3a:66
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:b2:73:7b:cc:76:74
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
