OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-c45ecc-0): addr:b2:6c:72:e0:61:12
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-740d85-0): addr:86:c5:83:16:3d:21
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:12:6f:7e:6d:bf:f4
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
