Sending data from one location to another appears easy in the realm of networking. However, what happens if you have to transfer the same data to multiple locations at once? Imagine thousands of people watching a live 4K sports broadcast. How can the network manage this without breaking under the pressure? Unicast and broadcast, the two most fundamental forms of communication, are insufficient.

The sophisticated answer is multicasting. Only one stream of data is sent by the source. The network infrastructure then gains the intelligence to replicate that stream and only supply it to the specific devices that have made the request. This is the secret to contemporary and efficient information delivery since it not only saves bandwidth but also lessens the strain on the source.