Gen-ART Last Call review of draft-ietf-spring-resiliency-use-cases-08 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-spring-resiliency-use-cases-08.txt Reviewer: Brian Carpenter Review Date: 2017-05-01 IETF LC End Date: 2017-05-04 IESG Telechat date: Summary: Ready with issues -------- Comment: -------- I wonder about the value to the community of publishing use cases and requirements late in the standards process. They clearly have value while designing solutions, but do they really have archival value, since RFC7855 was published a year ago? (An alternative approach to use case documents is to structure them as example applications to validate the protocol design, but that would be a major rewrite.) Major issue: ------------ I agree with the AD review dated 2017-04-20; if we publish a use case document of this kind, it should be historically consistent. Minor issue: ------------ The text of section 3 doesn't explain what requirements for SPRING it generates. Really it just describes what any IGP will do anyway. How does that impact SPRING? If there is no impact, please say so! The other sections are quite clear on this aspect.