Advantages of Routers
While switches are the device of choice for improving performance on a network, routers are used to segment large networks into internetworks made up of smaller networks.
Routers and switches are often used in combination.
Routers can connect different network architectures, such as Ethernet and Token Ring.
Routers can choose the best path across the network using dynamic routing techniques.
Routers can reduce network traffic because they do not retransmit network broadcast traffic.