- Liner bus Topology.
- Star Topology.
- Ring Topology.
- Tree Topology.
- Mesh Topology.
- i. Easy to connect a computer or peripheral to a linear bus.
- ii. Requires less cable length than a star topology.
- iii. It is best-suited for small networks.
- iv. It costs very less.
- i. Entire network shuts down if there is a break in the main cable.
- ii. Terminators are required at both ends of the backbone cable.
- iii. Difficult to identify the problem if the entire network shuts down.
- i. Easy to install and wire.
- ii. No disruptions to the network then connecting or removing devices.
- iii. Easy to detect faults and to remove parts.
- i. Requires more cable length than a linear topology.
- ii. If the hub or concentrator fails, nodes attached are disabled.
- iii. More expensive than linear bus topologies because of the cost of the hubs, etc.
- i. It is relatively easy to install and reconfigure.
- ii. Easy to identify the problem if the entire network shuts down.
- iii. Additional components do not affect the performance of network.
- iv. Each computer has equal access to resources.
Disadvantages of ring topology:
- i. Only one machine can transmit on the network at a time.
- ii. If one workstation or port goes down, the entire network gets affected.
- iii. Network is highly dependent on the wire which connects different components.
4. Tree Topology: The tree network topology uses two or more star networks connected together. The central computers of the star networks are connected to a main bus. Thus, a tree network is a bus network of star networks.
- i. Point-to-point wiring for individual segments.
- ii. Supported by several hardware and software venders.
- iii. Fault identification is easy.
- iv. The network can be expanded by the addition of secondary nodes.
Disadvantages of tree topology:
- i. Overall length of each segment is limited by the type of cabling used.
- ii. If the backbone line breaks, the entire segment goes down.
- iii. More difficult to configure and wire than other topologies.
5. Mesh Topology: The topology in each node is directly connected to some or all the other nodes present in the network.
- i. Eliminates traffic problems in links sharing.
- ii. If one link becomes unusable, it does not incapacitate the entire system.
- iii. It has privacy and security.
- iv. Point-to-point link make fault identification and fault isolation easy.
Disadvantages of mesh topology:
- i. Installation and reconnection are difficult.
- ii. The hardware required to connect each link (I/O ports and cable) is expensive.
- iii. It is generally too costly and complex for practical networks.