Network Topologys

Network Topologys

1. Bus/Line Network

   • Advantages
     • It is the cheapest and easiest to install, as it uses only a relatively short length of cable
     • New nodes can easily be added without disrupting the rest of the network
   • Disadvantages
     • If the bus fails the whole network fails
     • As more workstations are added, performance degrades as all data travels along the same bus

2. Ring network

   • Advantages
     • Data is transferred quickly as it flows in one direction only – no data collisions
     • Not affected by heavy traffic
     • More workstations can be added without degrading performance
   • Disadvantages
     • If any of the cable fails the whole network fails
     • Workstations may be able to see data that is not for them so there is a privacy/security issue
     • If there are any problems on the network, they can be difficult to identify

3. Star network

   • Advantages
     • Fast data transfer as there are no data collisions
     • If one cable fails the other workstations are not affected
   • Disadvantages
     • If the central device fails the whole network goes down
     • Expensive to install as lots of cabling is required as well as the central hub or switch