Last Call Review of draft-ietf-netmod-routing-cfg-24
review-ietf-netmod-routing-cfg-24-opsdir-lc-chown-2016-11-08-00

Hi,

I have reviewed this document as part of the Operational directorate's ongoing
effort to review all IETF documents being processed by the IESG.  These
comments were written with the intent of improving the operational aspects of
the IETF drafts. Comments that are not addressed in last call may be included
in AD reviews during the IESG review.  Document editors and WG chairs should
treat these comments just like any other last call comments.

This draft specifies a set of YANG data modules (ietf-routing,
ietf-ipv4-unicast-routing, and ietf-ipv6-unicast-routing) and a submodule
(ietf-ipv6-router-advertisements) that together form a core routing data model
framework for configuring and managing a routing subsystem. It is expected that
further modules will follow for control plane protocols, route filters and
other functions, to be specified in other IETF WGs.

I am not a YANG guru, but I found the document well structured, and both
intuitive and easy to follow. The quality of the writing is very good.

I only have one minor point to make, namely that there are some configuration
variables that one might argue could be added in Section 5.4 for the
ietf-ipv6-router-advertisements module. The listed variables do not appear to
include RDNSS as specified in RFC6106, and support for RFC4191, for router
preferences, is also not included. I assume such variables are ones the authors
consider can be added by future additional specifications, though they do
include M/O flag variables which are not core routing parameters. There may be
other variables missing beyond those taken from RFC4861.

But overall I believe the document to be Ready for publication.

Tim