Network Topologies
Bus Topology
Star Topology
Mesh topology
Hybrid Topology
• Bus networks
• Uses a single central cable to which all computers and devices are connected.
• It is easy to expand and requires little cabling.
• Data can only travel in one direction; if data is being sent between devices then other devices cannot transmit.
• It is peer-to-peer connection.
• Bus networks
• Even if one node fails, the remainder of the network continues to function.
• It is easy to increase the size of the network by adding additional nodes.
• If the main cable fails, the whole network goes down.
• The performance of the network deteriorates under heavy loading.
•The network is not secure since each packet passes through every node.
• Star networks
• uses a central hub/switch and each computer/device is connected to the hub/switch.
• Data going from host to host is directed through the central hub/switch.
• Each computer/device has its own dedicated connection to the central node (hub/switch) – any type of network cable can be used for the connections.
• It is client-server connection.
• Star networks
• Data collisions are greatly reduced due to the topology.
• It is a more secure network.
• It is easy to improve by simply installing an upgraded hub.
• If the main cable fails, the whole network goes down.
• The performance of the network deteriorates under heavy loading.
•The network is not secure since each packet passes through every node.
• Mesh networks
•There are 2 types of mesh networks: routing and flooding.
• Routing works by giving the nodes routing logic so that data is directed to its destination by the shortest route and can be re-routed if one of the nodes in the route has failed.
• Flooding sends data via all the nodes and uses no routing logic, which can lead to unnecessary loading on the network.
• It’s a type of peer-to-peer network.
• Mesh networks
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