- General: The term and concept of Enhanced VPN is being discussed in TEAS as part of the WG last call. I suggest to follow that thread and align the draft with whatever output will be agreed.
- General: i would suggest to change the title into "Applicability" rather than using. Per my understanding this document describes how to use existing mechanisms to achieve something new (the status is correctly informational)
- Abstract: "enhanced isolation". i checked if it was defined in the framework for Enhanced VPNs in TEAS, but i couldn't find a definition there nor in this draft. What does it mean? 
- VTN: is this a new term to identify a set of existing items? E.g. an ACTN VN, NRP, a set of RSVP-TE tunnel, a topology built with flex algo...are they cases of VTN or the VTN is a different thing?
- Intro: s/than that can be provided/than the ones that can be provided
- "Another possible approach is to create a set of point-to-point paths, each with a set of network resources reserved along the path, such paths are called Virtual Transport Path (VTP)". In what is this different from an ACTN VN member? See RFC 8453.
- Introduction: "In some network scenarios, the required number of VTNs could be small, and it is assumed that each VTN is associated with an independent topology and has a set of dedicated or shared network resources. This document describes a simplified mechanism to build SR based VTNs in those scenarios." I don't understand, is there the need for a specific mechanisms (different from existing ones) only for particular cases in which the number of VTNs is small (smaller than other scenarios)?
- Section 3.1 "The usage of other TE attributes in topology-specific TLVs is for further study." The draft is pretty simple and small, can't the usage of other TE attributes be described here as well?