Switched communications Networks Long distance transmission between stations(called end devices") is typically done over a network of switching nodes Switching nodes do not concern with content of data Their purpose is to provide a switching facility that will move the data from node to node until they reach their destination(the end device) a collection of nodes and connections forms a communications network In a switched communications network data entering the network from a station are routed to the destination by being switched from node to node3 Switched Communications Networks • Long distance transmission between stations (called “end devices”) is typically done over a network of switching nodes. • Switching nodes do not concern with content of data. Their purpose is to provide a switching facility that will move the data from node to node until they reach their destination (the end device). • A collection of nodes and connections forms a communications network. • In a switched communications network, data entering the network from a station are routed to the destination by being switched from node to node