LAN (Local Area Network)

LAN (Local Area Network)

LAN used to connect personal computers and workstations in a company that uses the equipment together and exchange information. In general, a LAN is owned by a company without any other intervention, such as telecommunication networks.

LAN used to connect nodes that are in areas not too far away as in a building or buildings with a maximum radius of 10 kilometers.

In general LAN data transfer speed is very high, eg 10 Mbps, 100 Mbps and some even up to 1000 Mbps.

LAN topology

Topology describes how to connect computers in a network.

Physical topology describes the actual layout of the hardware topology of the network while the logic describe the behavior of computers in the network from the viewpoint of the operator.

Physical topologies include: BUS, STAR and RING.

BUS topology is common in the LAN topology. The main cable connects each node to a single channel computer that accesses the tip with the tip.

In STAR topology a central terminal acts as a regulator and controller of all data communications. All controls in totpologi STAR concentrated at one point called the primary stations and other terminals as a secondary station.

RING topology is similar to the BUS topology, only the tip of this topology is connected with the other end to resemble a circle.