Multicast (internet)

Multicast is a method used on the internet to send data efficiently to multiple devices at the same time. Instead of sending individual copies of the data to each device, a single stream is transmitted to a special address that multiple devices listen to. Devices interested in receiving that data subscribe to this address, allowing them to receive the content simultaneously. This approach conserves bandwidth and reduces network load, making it ideal for services like live video streaming, online gaming, or real-time broadcasts where many users need the same information at once.