[Gen-art] Gen-ART Last Call review of draft-ietf-nfsv4-multi-domain-fs-reqs-09

[Brian E Carpenter <[e-mail]>]

I am the assigned Gen-ART reviewer for this draft. The General Area
Review Team (Gen-ART) reviews all IETF documents being processed
by the IESG for the IETF Chair.  Please treat these comments just
like any other last call comments.

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Document: draft-ietf-nfsv4-multi-domain-fs-reqs-09.txt
Reviewer: Brian Carpenter
Review Date: 2016-07-05
IETF LC End Date: 2016-07-06
IESG Telechat date:

Summary: Ready with issues
--------

Comment: I was asked to review -08 but found -09 has been posted, with
-------- considerable changes, during Last Call.


Minor issues:
-------------

"This document provides guidance on the deployment of..."

Sounds more like a BCP than a Proposed Standard to me. As I read through the
document, it describes alternatives and differing scenarios. That also seems
like BCP to me. One example:

> 7.  Resolving Multi-domain Authorization Information
>
>   When an RPCSEC_GSS principal is seeking access to files on an NFSv4
>   server, after authenticating the principal, the server must obtain in
>   a secure manner the principal's authorization context information
>   from an authoritative source such as the name service in the
>   principal's NFSv4 Domain.

That's underspecified for a standard but perfect for a description of
best practice.

The choices between lower-case and upper-case "must" seem fairly arbitrary.
There are only 5 instances of "MUST" and one "REQUIRED". Maybe this document just
doesn't need RFC2119 keywords?

  ** Downref: Normative reference to an Informational RFC: RFC 1813

This reference was added in the -09 version. I believe it should be
Informative instead of Normative. If not, a new Last Call mentioning
the downref is necessary.

  ** Obsolete normative reference: RFC 1831 (Obsoleted by RFC 5531)

This needs to be fixed.