Abstract This document presents a base YANG Data model for the management of Operations@ Administration@ and Maintenance (OAM) protocols that use connectionless communications. The data model is defined using the YANG data modeling language@ as specified in RFC 7950. It provides a technology-independent abstraction of key OAM constructs for OAM protocols that use connectionless communication. The base model presented here can be extended to include technology-specific details. There are two key benefits of this approach: First@ it leads to uniformity between OAM protocols. Second@ it supports both nested OAM workflows (i.e.@ performing OAM functions at the same level or different levels through a unified interface) as well as interactive OAM workflows (i.e.@ performing OAM functions at the same level through a unified interface).