Hi,

I have been selected as the Operational Directorate (opsdir) reviewer for this Internet-Draft. 

I have sent the authors an email with questions: https://mailarchive.ietf.org/arch/msg/idr/SnbzUXxYlOHt_Qnzn9yWKjOPCRw/

These questions need to be answered before detailed comments. I'm willing to do another round of review after these clarifications are made.

Thanks,
Yingzhen