OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-14933f-0): addr:7e:80:9c:e4:95:7c
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-275182-0): addr:1a:85:39:86:96:74
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:7a:64:3d:dc:01:d8
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
