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 < http://wiki.tools.ietf.org/area/gen/trac/wiki/GenArtfaq>. Document: draft-ietf-core-block-19 Reviewer: Jouni Korhonen Review Date: 4/18/2016 IETF LC End Date: 4/12/2016 IESG Telechat date: 4/21/2016 Summary: Ready with nits Major issues: none. Minor issues: * The intoduction mentions that the block transfwer can be used for random access. This is not separately described anywhere in the documents. Although the operation is more or less trivial I would appreciate an example or some text there because the Block2 overloads the NUM value 0 with special meaning (for the cases where the first ever accessed block is not the block number 0). Nits/editorial comments: * There are few issues with capitalization (e.g., section vs Section), which I believe the RFC Editor will handle without me pointing at them. * The document has a tendency of using long portions of text inside braces, sometimes even in a middle of a paragraph. I would strongly suggest either making those part of the normal text flow or a separate (intended) editor's note if they for some reason cannot be part of the normal text flow.