NETWORK TOPOLOGY |
NETWORK ARCHITECTURE |
BASIC NETWORK OF INTERNET |
BUS TOPOLOGY |
RING TOPOLOGY |
STAR TOPOLOGY |
Define: A bus network consist a single central cable(backbone) to which all computer and devices connected |
Define: On a ring network, a cable form a closed loop with all computers and devices arranged along the ring |
Define: All computers and other devices on a network connected to central device(hub/switch) thus forming a star. |
Logical topology: This network transmits data,instruction and information as a single series of signal on both direction and only intended recipient receive it and the rest will ignore it |
Logical topology: Data transmits along the ring network travel from a device to another device in one direction until it reach their destination using a token. |
Logical topology: In star network, data, instruction and information travel form one node to another node by passing through hub/switch. |
Advantages: ▸ It is easy to set up, handle, and implement. ▸ It is best-suited for small networks. ▸ It costs very less. |
Advantages: ▸ In comparison to a bus, a ring is better at handling load. ▸ The adding or removing of network nodes is easy, as the process requires changing only two connections. ▸ The configuration makes it easy to identify faults in network nodes. |
Advantages: ▸ Due to its centralized nature, the topology offers simplicity of operation. ▸ It also achieves isolation of each device in the network. ▸ Adding or removing network nodes is easy, and can be done without affecting the entire network. |
Disadvantages: ▸ The cable length is limited. This limits the number of network nodes that can be connected. ▸ This network topology can perform well only for a limited number of nodes. When the number of devices connected to the bus increases, the efficiency decreases. ▸ It is suitable for networks with low traffic. High traffic increases load on the bus, and the network efficiency drops. |
Disadvantages: ▸ The failure of a single node in the network can cause the entire network to fail. ▸ The movement or changes made to network nodes affect the entire network's performance. |
Disadvantages; ▸ Network operation depends on the functioning of the central hub. Hence, central hub failure leads to failure of the entire network. ▸ Also, the number of nodes that can be added, depends on the capacity of the central hub. ▸ The setup cost is quite high. |