Network topology is the layout of computers and devices in a communication network
3 basic types of network topology : (1) Star Network Topology
(2) Bus Network Topology
(3) Ring Network Topology
3 basic types of network topology : (1) Star Network Topology
(2) Bus Network Topology
(3) Ring Network Topology
Bus network  |
Ring network
 |
Star network
 |
|
| Definition/Physical topology |
Consists of a single central cable(backbone/truck), to which all computers and other devices connect(node) |
On a ring network, a cable forms a closed loop(ring) with all computers and devces arranged along the ring |
All the computers and other devices on the network connet to cental devices(hub/switch), thus forming a star |
| Logical topolgy/How data transfer |
In a bus network, it transit data, instructions, ad information( the address
of the recieving devices is included) as aseries of signal in both
directions where all nodes recieve the signal but only the intended
recipient will accept the signal and the rest will ignore |
In a ring network,data
transmitted on a ring network travels from device to device around the
entire ring, in one direction(clockwise or counterclockwise0 until it
reach destination by using token Token passing is one method for sending data around ring |
In a star network, data, instruction and informations transfer from one node to another node passes through hub/switch. |
| Advantages |
Inexpensive and easy to install |
Cable faults are easy located, making troubleshooting easier |
Easy to troubleshoot and isolate problem |
| Disadvantages |
The network will be malfuntioned if the single cental cable breakdown |
The network will be malfunctioned if the devices(pc/device) breakdown |
The network will be malfunctioned if the single hub/switch breakdown |
