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-trill-tree-selection-01 Reviewer: Daniele Ceccarelli Review Date: Jan 07 2015 IETF LC End Date: September 2015   Intended Status: Standard Track Summary:   This document is basically ready for publication, but has nits that should be considered prior to publication. Comments: Overall the draft if well written and easy to understand. I found it quite difficult to go through section 1 but I guess it’s due to my lack of knowledge of the technology. A rearrangement accordingly to the minor issues IMO would improve readability of the document.   Major Issues: No major issues found Minor Issues: Section 3.2 – A list of the 4 TLVs with their name and one sentence summarizing its use would improve readability. Same applies in the following to e.g. section 3.2.1 where the paragraph before the figure is not very clear on the usage of the TLV. Section 3.5 – Section 3.5 defines a fifth TLV, why not listing it with the other 4 ? Nits: Section 1.1: s/ the ingress RBridge use/the ingress RBridge uses Section 2: s/campus/Campus Section 3.1 s/is/has ?? Section 3.3 s/rfc7180bis/RFC7180bis BR Daniele