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-tsvwg-ecn-l4s-id-26 Reviewer: Ines Robles Review Date: 2022-07-21 IETF LC End Date: 2022-07-21 IESG Telechat date: Not scheduled for a telechat Summary: The document, with experimental intended status, defines the protocol to be used for a new network service called low latency, low loss and scalable throughput (L4S). L4S uses an Explicit Congestion Notification (ECN) scheme at the IP layer. The document is well written, includes also discussion about open issues/questions to be addressed through experimentation Major issues: None Minor issues: None Nits/comments: Page 17: " ..The members of the Transport Working group are not aware of any... " it would be nice to add something like: "At the time of writing this specification, the members of the Transport Working group are not aware.." Thanks for this document, Ines.