Most Recent Changes Separate the OL, PT, ATT bits for default topology and other topologies Added some text for ensuring routing consistency when using MT, such as the route leaking should only be performed within the same MT Emphasize in MT IS TLV, Prefixes TLV, MT-ID zero must be ignored Emphasize not to mix TLV type 236 and 237 for IPv6 in the same network Fixed some typos |