Swisscom Swisscom INSA-Lyon Everything OPS NTT This document specifies a mechanism to define a unique Message key for a YANG to Message Broker integration and a topic addressing scheme based on YANG-Push subscription type and a YANG index defined in this document. This enables YANG data consumption of a subset of subscribed YANG data, either per specific YANG node, identifier or telemetry message type, by indexing and organizing in Message Broker topics, indexing the information by using data taxonomy and organize data in partitions and shards.