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-core-sid-15 Reviewer: Linda Dunbar Review Date: 2021-03-16 IETF LC End Date: 2021-03-17 IESG Telechat date: Not scheduled for a telechat Summary: This document introduces the globally unique 63-bits integers to identify YANG items which include data nodes, RPCs, their associated inputs/outputs, notifications, YANG modules, submodules, and features. Major issues: - One of the benefits of YANG is its explicit naming and human-understandable notations. It will be a nightmare if all the YANG items are represented by integers. YANG items being represented by integers will be worse than the TYPE values in the TLVs. At least, the TLV types are in the context of the protocols and their messages. - It will be a tremendous amount of work to map all YANG items to globally unique integers. - YANG has been widely deployed without the numbering system. Which environment will need the integer representations? Who will validate the numbers used? How to validate the YANG modules represented by those "integers"? - SID can be mistaken as Segment Identifiers (SID). Suggest using a different name. Minor issues: Nits/editorial comments: Best Regards, Linda Dunbar