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 wait for direction from your document shepherd or AD before posting a new version of the draft. For more information, please see the FAQ at . Document: draft-ietf-bier-ospf-bier-extensions-12 Reviewer: Robert Sparks Review Date: 2018-02-19 IETF LC End Date: 2018-02-22 IESG Telechat date: 2018-02-22 Summary: Almost ready for publication as a standards track RFC Major issue: The security considerations section is essentially empty (what it currently says reduces to "don't let malformed packets crash your implementation". Surely there's more to say here. Is there an assumption that, in any given deployment, the administrators of the bier layer and the ospf layer are the same people, and have the same authority? If so, it's probably worth saying so. If not, are there edges to discuss? If this document really doesn't introduce any new security considerations, it should argue why that's the case. Minor issues: Is there a reason not to use the example/documentation IPV4 address ranges? (See the shepherd writeup). The author count is above the current RFC-Editor/IESG recommendations. Work that out with your ADs.