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 the use of an alternate schema format, YANG for describing SNMP configuration. As such the schema presented defines modules that are equivalent to traditionally described ASN.1 MIBs but without the insertion of sharp sticks in the eyes or underneath the fingernails. Since SNMP (wisely) forked ASN.1 some time ago and is not tracking developments in that spec, this is arguably a more principled approach. This does not in itself raise security concerns but the new model takes advantage of the modularity and block structure of YANG to separate areas of the configuration with similar concerns, for example similar access control requirements. It might be worth having a look at the specific access control requirements specified in the security considerations section.