Source:https://www.google.com/search?q=star+topology+gif
A network structure comprising a central node to which all other devices attached directly and through which all other devices intercommunicate. As illustrated in Figure S-9, the central node is in the form of a hub, switch, or router with multiple ports to which devices connect, usually through unshielded twisted pair (UTP) or shielded twisted pair (STP). In the public switched telephone network (PSTN), each carrier serving area (CSA) is a star, with local loops radiating from the central office (CO). Star configurations include 100Base-T and 1000Base-T local area networks (LANs). See also 100Base-T, 1000Base-T, CO, CSA, hub, node, PSTN, router, STP, switch, Token Ring, topology, and UTP.
Advantages of Star Topology
1.) As compared to Bus topology it gives far much better performance, signals don’t necessarily get transmitted to all the workstations. A sent signal reaches the intended destination after passing through no more than 3-4 devices and 2-3 links. Performance of the network is dependent on the capacity of central hub.
2.) Easy to connect new nodes or devices. In star topology new nodes can be added easily without affecting rest of the network. Similarly components can also be removed easily.
3.) Centralized management. It helps in monitoring the network.
4.) Failure of one node or link doesn’t affect the rest of network. At the same time its easy to detect the failure and troubleshoot it.
Disadvantages of Star Topology
1.) Too much dependency on central device has its own drawbacks. If it fails whole network goes down.
2.) Too much dependency on central device has its own drawbacks. If it fails whole network goes down.
3.) Performance and as well number of nodes which can be added in such topology is depended on capacity of central device.
References:
Sparrow,Penna.(2019).ianswer4u.com.Retrieve.<November 6,2019,3:29PM>.from.https://www.ianswer4u.com/2011/05/star-topology-advantages-and.html
yourdictionary.com.(2019).yourdictionary.com.Retrieve.<November.6,2019,3:29PM>.from.https://www.yourdictionary.com/star-topology
Ej Laturnas 