EXPLORING

EXPLORING. TOPOLOGIES.

MESH TOPOLOGY. Mesh topology is a type of networking in which all the computers are inter-connected to each other. The connected nodes can be computers, switches, hubs, or any other devices. There is a point-to-point connection between all nodes in the mesh topology setup. The full mesh and partially-connected mesh are two forms of the mesh topology. The number of links required to connect N devices in a mesh topology is N(N-1). If all the links are duplex-mode links then it is required N(N-1)/2 links..

ADVANTAGES & DISADVANTAGES. Advantages Disadvantages Failure during a single device won’t break the network. Amount of cabling and the number of I/O ports required are very high. There is no traffic problem as there is a dedicated point to point links for every computer. Installation and reconnection are difficult. It provides high privacy and security. It’s costly as compared to the opposite network topologies. Adding new devices won’t disrupt data transmissions. Power requirement is higher. Errors and bugs are easily diagnosed. Each node has its own maintenance cost..

STAR TOPOLOGY. Star networks require a point to point connection between the central node and connecting devices. The connected nodes can be routers, switches, hubs, or any other devices. A device cannot provide communication directly between the devices in a star topology. It does not allow direct traffic between devices. The central node acts as an exchange. The central hub acts like a server and the connecting nodes act like clients..

ADVANTAGES & DISADVANTAGES. Advantages Disadvantages Less expensive than a mesh topology. If the central hub fails, nodes attached are disabled and can’t participate in network communication. Less expensive because each device only need one I/O port and wishes to be connected with hub with one link. Requires more cable than in some other topologies. Easy fault detection because the link are often easily identified. Extra hardware is required (hubs or switches) which adds to cost. It is very reliable – if one cable or device fails then all the others will still work Easy to install and reconfigure: Each device needs only one link and one I\O port to connect it to any number of others..

BUS TOPOLOGY. Bus topology is a network type in which every computer and network device is connected to a single cable. It is a multi-point connection and a non-robust topology. The nodes are connected to the channel via drop lines..

ADVANTAGES & DISADVANTAGES. Advantages Disadvantages Easy to install. Bus topology is not great for large networks. Uses less cabling than mesh or star topologies. Difficult reconnection and fault isolation. It is easy to understand topology. This network topology is very slow as compared to other topologies. If the main cable is damaged, the whole network fails or splits into two..

RING TOPOLOGY. The nodes are connected in a closed-loop configuration. Each device has a dedicated point-to-point connection with only the two devices on either side of it. Each device in the ring incorporates a repeater. Data packets travels from one node to the next until it reaches it’s destination. The two main varieties of ring topology are bidirectional and unidirectional , respectively..

ADVANTAGES & DISADVANTAGES. Advantages Disadvantages In this topology additional workstations can be added after without impacting performance of the network. If a node goes down entire network goes down. Relatively easy to install. Unidirectional traffic can be occurred. Fault isolation is simplified. It is slower in performance as compared to the bus topology It is cheap to install and expand. Addition and removal of any node during a network is difficult. Speed to transfer the data is very high in this type of topology. It is Expensive. Equal access to the resources..

HYBRID TOPOLOGY. A hybrid topology is a type of network topology that combines two or more network topologies. Three hybrid topologies are mesh, bus and ring. It’s use and selection are influenced by its deployments and specifications The hybrid topology has different network branches..

ADVANTAGES & DISADVANTAGES. Advantages Disadvantages It is easier to add or remove components It is a type of network expensive Hybrid topology makes error detection and troubleshooting much easier. The design of a hybrid network is very complex It is extremely flexible. There is a change in the hardware to connect one topology with another topology. Handles a large volume of traffic Installation is a difficult process. It is used for create large network The speed of the topology becomes fast when two topologies are put together.