Telechat Review of draft-ietf-v6ops-framework-md-ipv6only-underlay-25
review-ietf-v6ops-framework-md-ipv6only-underlay-25-tsvart-telechat-trammell-2026-08-17-00

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Thank you for adding language to the operational considerations section to
address my concerns with -23. This document points to what I continue to
consider relatively serious issues with 7915-based transition technologies;
namely, "they only work among friends who can coordinate MTU out of band,
and good luck using ECN."

That said, fixing these issues is probably out of scope for this effort,
so with the warnings added this document is ready to go.

one editorial nit: i'd probably go with "silently disables ECN" or "silently
removes ECN signals" instead of "silently kills".