Thread: Difference between a hub and a switch.

All is directed through an Ethernet network in the main shear data known as packets. A computer wishing to send information packets gives the address, and sends them via cable.

If a packet arrives at the hub, the hub copies the packet and sends it to any other port, it has. Once a packet reaches the proper destination, the intended recipient sees their address on the package and takes it. Those who do not observe their address of a packet, discard. A hub, if the systems try to send on the line at the same time, data collision occurs, and packets should be repeated.

Switch bit smarter. He learns the address of individual systems. When a packet arrives at her, the switch looks at its address and sends the packet to this appointment, not sending it to everyone else. In connection with these improvements over the hub, switch, often work better where you want a high bandwidth networks

Hubs

The Hub term is sometimes used to refer to each piece of network equipment that links computers together, but actually refers to a multi-port repeater. This type of device simply passes on all information received, so that all devices connected to ports will receive this information.

Hubs repeat what it receives and can be used to expand the network. However, this can lead to many unnecessary traffic is sent to all network devices. Focal points for transit traffic in the network, regardless of the destination; Personal computers on which packets are sent using the address information in each packet to process packets destined for them. In a small network replication is not a problem but a bigger, heavier use of the network, another piece of networking equipment may be required to help reduce the amount of unnecessary traffic generated.

Switches

Switches control the flow of network traffic depend on address information in every packet. Switches find out which devices are connected to the ports and after that forward packet to the suitable port only. This permits simultaneous communication between the switch, improving bandwidth.

This switchingoperation decreases the amount of redundant traffic that would have happened if the same information had been sent from each port.

Switches and hubs that are used often in the same network; the nodes of the network expansion to provide more ports, and switches divide the network into smaller, less congested areas.