This is a rtg-directorate review.  As such it should be seen as another external review on this document. 

Status: ready 
Additional nits: none 
Comments: Document is technically complete pointing to the key IETF RFC references (RFC7138, RFC7139). 
The ITU-T_G709_2020 document is outside of my expertise, but on the references match my understanding at a product level. 

The security considerations seem appropriate as this document simply extends the similar mapping functionality. 

This document was a easy read.  Kudos go to the authors, the CCAMP WG, and the CCAM chairs.