document: draft-ietf-sfc-ioam-nsh-11.txt 
reviewer: Susan Hares
reviewer expertise:  Routing, general awareness of SFC and NSH, not an IOAM expert. 
review focus: OPS-DIR - operational

AFIL, the document is consistent within the text and with documents referenced. 
I have read https://datatracker.ietf.org/doc/html/draft-ietf-ippm-ioam-deployment-05, but I am not an expert in the deployment considerations. I recommend that someone review this text who is a expert in deployment considerations. 

Only two sentences had editorial issues that the authors might want to review: 

Section 3.  sentence 2.  The phrase "the different IOAM-Data-Fields" made the logic difficult to follow.  However, it may be the best phrase for the technology. 

Appendix A, paragraph 4 (starts Total length), the second sentence has a grammatical roughness. Here's the roughness 
Current text: If for example [text], then text. 
normal mechanisms use:  For example, if -----, then ----

I have not flagged these issues as a nit, but the authors might want to review check these before getting IESG reviews.