Network Topology


Topology

The logical and  physical arrangement of computer in a network is called  topology .Topology means now a days physical topology .
Classifications are :
1.      Logical
2.      Logical bus
3.      Logical Ring
4.      Physical
5.      Linear Bus topology
6.      Ring  topology
7       Star topology
8      Tree topology
9       Mesh topology
10    Hybrid topology


Bus
In a bus topology all computers are connected to a central cable called bus or backbone

Star
 Star topology is a topology where each computer is connected with  central network hub or concentrator. Data passes through the hub or switch before fix up destination on a star topology. All functions are manages and controls by the hub or switch of the network. this hub or switch also acts as a repeater for the data flow. usually this network is configured by twisted fair cable. moreover we can use coaxial cabel or fiver optic cable in this kinds of network. Star topology is using in maximum Local Area network
Ring

A ring topology is looking like a star topology. we use multistation access unit called MAU instead of switch/hub of a ring contains wiring that allows information to pass like circle or ring.from one device to another Token Ring protocol uses in  ring topology.