I have reviewed this document as part of the security directorate's ongoing effort to review all IETF documents being processed by the IESG. These comments were written primarily for the benefit of the security area directors. Document editors and WG chairs should treat these comments just like any other last call comments. This document describes how to leverage the Automatic Control Plane (ACP) in Automatic Networks (AN) to provide stable and secure connectivity for Operations, Administration and Maintenance (OAM) processes. The document is intended to be *informational*. The document is well written and has an adequate Security Considerations section. I have no issues with this document. Minor nit: "encryption protected" -> "encrypted." -- -- Magnus