It computer networks
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This document compares the structures, hosts, connections, failures, troubleshooting, and scalability of bus, ring, and star network topologies. Bus networks connect all devices to a central backbone cable, while ring networks connect all devices in a circle. Star networks feature a central host that connects to all other nodes. Ring and star networks will fail if the host fails, while bus and star can still run if a node fails. Bus networks are easiest to expand but hardest to troubleshoot, while star networks offer average expansion and easier troubleshooting when the host functions.
It computer networks
- 19. Comparison of LAN, MAN, WAN
- 20. DIFFERENCES Bus Topology Ring Topology Star Topology Structure there is a single central cable (backbone) and all computers and other devices connect to it all computers and other devices are connected in a circle there is a central host and all nodes connect to it Host existence depends on network needs depends on network needs yes Connection between nodes It has no connection between the nodes. yes no Host failure network can still run network will fail network will fail Node failure network can still run network will fail network can still run Ease of troubleshooting difficult. Need to search for the problematic node one by one depends on backbone. If there is a backbone, troubleshooting is difficult. If there is no backbone, the focus is on the two nodes not communicating depends on the host. It is easier to repair the problematic host. However, if the nodes fail, then each node has to be searched Ease of adding or removing nodes easy difficult average Number of nodes when extending network many limited limited