YANG (Yet Another Next Generation)
YANG is a data modeling language used to model configuration and state data manipulated by the Network Configuration Protocol (NETCONF), RESTCONF, and other network management protocols. It provides a standardized way to define the data sent over network management protocols, enabling interoperability between network devices from different vendors. YANG plays a crucial role in software-defined networking (SDN) and network automation by facilitating the development of programmable networks and simplifying the management of complex network infrastructures.