YANG Models

YANG Models are structured data models used for the configuration and management of network devices and network services. YANG stands for Yet Another Next Generation and is standardised by the IETF. The models define which configuration parameters, operational state data, notifications and management functions a system provides and how this information is structured. They are particularly associated with network management protocols and interfaces such as NETCONF and RESTCONF. Vendors can develop proprietary YANG Models or implement standardised models. This enables network configurations and operational data to be represented in a machine-readable format and processed by automation platforms or network management systems. YANG Models therefore play an important role in network automation, Software-defined Networking and programmable network infrastructures, supporting consistent and automated management of complex IT networks.