Hello, I have been selected as the Routing Directorate reviewer for this draft. The Routing Directorate seeks to review all routing or routing-related drafts as they pass through IETF last call and IESG review, and sometimes on special request. The purpose of the review is to provide assistance to the Routing ADs. For more information about the Routing Directorate, please see http://trac.tools.ietf.org/area/rtg/trac/wiki/RtgDir Although these comments are primarily for the use of the Routing ADs, it would be helpful if you could consider them along with any other IETF Last Call comments that you receive, and strive to resolve them through discussion or by updating the draft. Document: draft-ietf-i2rs-yang-l2-network-topology-13.txt Reviewer: Stig Venaas Review Date: 2020-06-24 IETF LC End Date: 2020-06-25 Intended Status: Standards Track Summary: This document is basically ready for publication, but has nits that should be considered prior to publication. Comments: The document is well written and easy to read. I only found some minor nits that should be taken care of. Major Issues: No major issues found. Minor Issues: No minor issues found. Nits: The idnits tool found some nits; regarding references in particular. There may be some minor model issues, tracker says: Yang Validation 9 errors, 2 warnings. The abstract is rather short, I think it would be worth going into a little more detail. In Introduction “A sample example” should maybe just be “An example”? For grouping l2-network-type, shouldn’t “indicates” be capitalized? presence "indicates L2 Network"; For leaf maximum-frame-size, missing space before PPP if L2 frame is other type (e.g.,PPP), the L2 For l2-termination-point-type, leaf tag, should say “is supported” "Defines whether lag is support or not."; In the security considerations, should be “defines” The Layer 2 topology module define In Appendix A, should say “represents”. implementations, a corresponding companion module is defined that represent the operational state of layer 2 network topologies. The Regards, Stig