[Tsv-art] Tsvart last call review of draft-ietf-rtgwg-net2cloud-problem-statement-32

[Magnus Westerlund via Datatracker <[e-mail]>]

Reviewer: Magnus Westerlund
Review result: Ready with Issues

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primarily for the transport area directors, but are copied to the document's
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First of all let me tell you how the document comes across to me. It appears to
be an identification of a number of potential hurdles for enterprises deploying
using hybrid cloud. The issues identify some options or mitigations for the
issue. To the level where I am uncertain that it really is problem statement.
The requirements list in section 6 appears quite high level and identifying
some factors where at least some where limitations in implementations, rather
than in standards. So, I don't see this document as a problem statement that
results in clearly identifying the need for standards work in an area to
address a set of issues with common solution. So from my perspective I think
the document can really be focuses on informational document pointing out
mitigations for issues. However, the document is quite wide and an enterprise
will have to make choices based on its situations, chose cloud providers and
other factors for how to deploy or evolve their deployment. Thus, I think the
problem statement part of the document can really be eliminated.

Also, I think it is a bit unclear if document is on the edge between a
Informational document informing on existing solutions as mitigations, or if it
actually recommend or prescribe usage of solutions in situations that might not
before been envisioned or recommended.

Additional comments:
Section 4.1:

"A Customer Gateway can be a customer owned router or ports
   physically connected to an AWS Direct Connect GW."

In Figure 1, is the customer gateway the CPE, or any of the other gateways at
the DC or cloud provider? I would request clarifying the definition of the
customer gateway.