OFPST_PORT_DESC reply (xid=0x2):
 1(ovn-b663ec-0): addr:76:08:66:4b:23:05
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 2(ovn-00c991-0): addr:62:c9:4b:b0:f1:57
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 3(ovn-19d5c6-0): addr:ce:82:b5:3b:19:c0
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
 LOCAL(br-int): addr:ba:03:3d:ad:9c:86
     config:     PORT_DOWN
     state:      LINK_DOWN
     speed: 0 Mbps now, 0 Mbps max
