I am the assigned Gen-ART reviewer for this draft. The General Area Review Team (Gen-ART) reviews all IETF documents being processed by the IESG for the IETF Chair. Please treat these comments just like any other last call comments. For more information, please see the FAQ at . Document: draft-ietf-isis-mi-bis-02 Reviewer: Orit Levin Review Date: 2017-04-06 IETF LC End Date: 2017-05-14 IESG Telechat date: Summary: This draft is ready for publication. The document is very well organized and clearly written. My only comment or question is related to backwards compatibility and mixed systems. Is there a possibility that all or some of the clients do not support the new functionality? Is there a possibility that a server doesn't support the new functionality? If the answer to one of these questions is yes, how is it being dealt with by the SW? How would it affect human experience? Thanks, Orit.