A network that requires human intervention to route signals is called a
A network that requires human intervention to route signals is called a T-switched network,
A network switch (also called switching hub, bridging hub, officially MAC bridge) is a computer networking device that connects devices together on a computer network by using packet switching to receive, process, and forward data to the destination device.
Switches allow different devices on a network to communicate. Routers allow different networks to communicate. A router also connects networked computers to the Internet, so multiple users can share a connection. And a router acts as a dispatcher.
A switch prevents collisions by providing a circuit between the source and destination ports. This circuit provides a dedicated channel over which the hosts connected to the various ports on the switch can communicate.
The basic function that any switch is supposed to perform is to receive information from any source connected to it and dispatch that information to the appropriate destination only. This thing differentiates switches from hubs. Hub gets the information and forwards that to every other device in the network.