YANG Message Keys for Message Broker Integration

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 YANG Schema Node Identifier. This enables YANG data consumption of a subset of subscribed YANG data, either per specific YANG data node, identifier or telemetry message type, by indexing and organizing in Message Broker topics. It helps top index the information by using data taxonomy and organizes data in partitions and shards of Message Brokers and time series databases.