Éric Vyncke has entered the following ballot position for
draft-ietf-opsawg-teas-common-ac-14: No Objection

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COMMENT:
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# Éric Vyncke, INT AD, comments for draft-ietf-opsawg-teas-common-ac-14
CC @evyncke

Thank you for the work put into this document.

Please find below some non-blocking COMMENT points (but replies would be
appreciated even if only for my own education), and some nits.

Special thanks to Reza Rokui for the shepherd's detailed write-up including the
WG consensus *but* the justification of the intended status is rather light:
being "valuable" is not enough to be a "standard".

I hope that this review helps to improve the document,

Regards,

-éric

## COMMENTS (non-blocking)

Thanks for using SVG graphics, it makes reading the HTML rendering much easier
and nicer.

### Abstract

Should 'model' be used rather than 'module' in `The document specifies a common
attachment circuits (ACs) YANG module` in order to be consistent with the title
? I understand that a model can consist of a single module.

### Section 1

Should `ancillary node` be better explained as it can mean multiple things
depending on the context?

Figure 1, when the text writes `The same CE may terminate multiple ACs.` it
would help if the text mentioned CE3 & CE4 and the associated bearer (assuming
that `b*` is for a bearer).

### Section 2

When defining "bearer", please associate  the previously defined terms (CE,
CPE) with `customer node`.

### Section 3

Not really about this I-D, but I find the use of `ietf-ac-glue` rather than
'ietf-ac-bind' a little too trivial especially when the text is about `To bind
Layer 2 VPN` ;-)

### Section 4

Thanks for splitting the whole tree in parts, it helps.

### Section 4.1

It is rather unclear what `server` means in this document, even if I can guess
some controllers in the SP domain.

### Section 4.3

Should there be a `*l3*-tunnel-type` in addition to `*l2*-tunnel-type` ?

Should the layer of the next hop be specified in `local-defined-next-hop`?

Should there be reference to `UNI`and `NNI`?

About figure 5 explanations about ipv6-connection, should there be a
possibility for multiple IPv6 addresses per service ? Should there be SLAAC for
dynamic address allocation ?

Should there a choice on how to authenticate OSPFv3 either RFC 4552 or RFC 7166
?

### Section 5

In the vxlan grouping, the modules writes `"Specifies the VXLAN access mode. By
default, the peer mode is set to 'static-mode'.";` but I see nothing in the
YANG module to set a default (unsure whether it is possible though).

## NITS (non-blocking / cosmetic)

s/Layer 2 VPN/layer-2 VPN/ ? same for layer 3 of course

****



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