In a network where a LAN switch is used, each node gets a direct connection to a switch. That is, a node gets a dedicated connection to the switch which only it (the node or the computer) and the switch use. This dedicated connection makes it possible for one node to maximize use of the bandwidth available to it. After all, no other node is competing with it for bandwidth. This means speedy data transmission.
Moreover, the connection between the node and the switch can be made using cabling which has a separate route for data that the node is sending out and a separate route for data that the switch is forwarding to the node. This eliminates problems of data collision.
The LAN switch is especially a vast improvement over the network hub since it has the ability to “read” the source and destination node of a data packet and forward the packet only to the destination node.
Whenever the node transmits data meant for another node in the local area network, the switch intercepts the data, determines the destination and forwards the transmission to its intended destination. Since a data packet does not get broadcasted to unnecessary segments, network congestion is minimized and network bandwidth is conserved.
Posted by: Wasim Javed
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