|
Explain the functionality of a hub, a bridge and switch. Hub: Hub is a device in a network, Data packet from one port is sent to all other ports in a network. The data packet passes through a hub. Hub transmits the data packet to the destination. Hubs are typically used on small networks where the data transmission is never high.
Bridge: A bridge is similar to hub but one step ahead. It looks for the destination of the packet before transmission of data. A bridge has only one incoming and one outgoing port. A bridge is used to decide if the message should continue. Bridges are typically used for separating parts of the network which need not communicate regularly, but obviously needs to be connected.
Switch: A switch is similar to bridge but one step ahead. A packet is determined to which computer the packet is sent. Efficiency is increased in this way of data packet transmission only to the destined computers but not all. Large networks use switches to connect computers within in the same subnet.
|
