I have reviewed version 06 for the Routing Directorate

Firstly I apologise for taking so long to review this text.

I admit that this is not an aspect of MPLS that I would consider that I have strong expertise in. I would therefore recommend that the text be reviewed by someone that specialises in MPLS OAM. The person that I would recommend in the first instance is Greg Mersky if he is available.

That said the document seems sound.

It obviously needs a security section. I would clone the security section of RFC8287 and then think about anything that degrades the security. At the moment I cannot see any security issues not covered by RFC8287. 

The text could do with a little light polish of the English in places.

Something to fix in the next pass is the inconsistency with Nil sometimes this is NIL sometimes it is Nil.