[netext] AD Evaluation: draft-ietf-netext-pmip-qos-wifi

[Brian Haberman <[e-mail]>]

All,
     I have completed my AD Evaluation of
draft-ietf-netext-pmip-qos-wifi as a part of the publication process.  I
have a few points that I would like to discuss before moving this
document into IETF Last Call...

* The reference to RFC 2119 needs cleaning up.  The Normative References
section tags the document as [RFC 2119], but section 1.1 refers to it as
[RFC2119].

* The Introduction uses several acronyms without expansion.  Notionally,
this seems to be because the acronyms are expanded in section 1.3.  I
would suggest avoiding the use of the acronyms until after section 1.3.
 The Introduction should just use the expanded terms.

* Definitions

     - Do the definitions need to use the 2119 keywords?

     - For simplicity, I would move section 1.3 ahead of section 1.2.

* Section 2 uses "(in decreasing order)". The context derived from the
next sentence indicates that is in decreasing order of priority.  I
would state that explicitly.

* Section 3.1.1

     - Step 1 seems to require the AP/MAG to do DPI if TCLAS is not
present. Does that imply that the AP/MAG must have application layer
gateway support for each app used by the MN?  If so, that could have
scalability and usability implications.  May be worth mentioning.

     - In Step 2, what is the AP/MAG to do if the TCLAS is not present
(when WMM-AC is used)?  Does it construct one via the ALG discussed above?

* Section 3.1.2

     - This is the first mention of a policy server and there is no
description or reference of what the policy server does or how it is
expected to interact with these QoS mechanisms.  At a minimum, there
should be something in the Definitions that describes this function.

     - What is the rationale for the order of steps?  I could very
easily see the order being 1, 3, 4, 2.  Are there corner cases that
should be discussed if the original order is not followed?

* Section 3.2 seems like an attempt to cover all possible scenarios when
it may not be needed.  Can a scenario be described where the network
would originate the QoS signaling?

* Figure 5 is never referenced in the text.

Regards,
Brian