computer network topologies

computer network topologies

1. what is a topology

   • the physical and logical arrangements of nodes in a network

2. types of topologys

   • star topoligy
     • disadvantages
       • is the switch/ router loses power the whole system goes down
     • advantages
       • cheap to run
       • easy to connect new devices
       • if onw node fails it doesn't affect any of the other nodes
     • how are the nodes connected
       • the nodes are all connected to the switch/router
   • mesh topology
     • how are the nodes connected
       • they are connected to every other node
     • advantages
       • communications are recived faster
       • connections should always get through due to the many possible routes
       • multiple connections
       • no central node
     • disadvantages
       • very expensive
       • lots of wires
       • needs alot of maintenence