This is an OPD-DIR review of ALTO Extension: Entity Property Maps (draft-ietf-alto-unified-props-new)

review conclusion: Ready with questions

This document describes extensions to the ALTO protocol to support additional functionality, as such this document describes 
technology that will make operating a network better (not necessary easier since there is more to do) 

I did not find any particular operational issues issues 

two questions though
1/ with language like the following
“this document specifies a protocol extension for defining and retrieving ALTO properties”
and
“The concept of an ALTO Entity generalizes the concept of an ALTO Endpoint defined in Section 2.1 of [RFC7285].”

I would have assumed that the new RFC would update RFC 7285 but the header of the ID does not say that it updates anything - if this has already been discussed and decided then fine but it sure looks like an update to me

2/ section 12.2 describes the "ALTO Entity Domain Registry" and specifically says that additions to the registry require "IETF Review"
but section 12.3, which describes the "ALTO Entity Type Registry" and says what info must be included in any request to add items to the 
registry but does not say what, if any review is needed - leaving it open ended seems wrong to me

Scott