Network topologies

Mesh Topology Hybrid Topology More complex networks can be built as hybrids of two or more of the above basic topologies. Star Topology Many home networks use the star topology. A star network features a central connection point called a "hub" that may be a hub, switch or router.

Network topologies

Key Terms Types of Network Topology Network Topology is the schematic description of a network arrangement, connecting various nodes sender and receiver through lines of connection. BUS Topology Bus topology is a network type in which every computer and network device is connected to single cable. When it has exactly two endpoints, then it is called Linear Bus topology.

Features of Bus Topology It transmits data only in one direction. Every device is connected to a single cable Advantages of Bus Topology Cable required is least compared to other network topology.

Used in small networks. It is easy to understand. Easy to Network topologies joining two cables together. Network topologies of Bus Topology Cables fails then whole network fails.

If network traffic is heavy or nodes are more the performance of the network decreases. Cable has a limited length. It is slower than the ring topology. RING Topology It is called ring topology because it forms a ring as each computer is connected to another computer, with the last one connected to the first.

Exactly two neighbours for each device. Features of Ring Topology A number of repeaters are used for Ring topology with large number of nodes, because if someone wants to send some data to the last node in the ring topology with nodes, then the data will have to pass through 99 nodes to reach the th node.

Hence to prevent data loss repeaters are used in the network. The transmission is unidirectional, but it can be made bidirectional by having 2 connections between each Network Node, it is called Dual Ring Topology.

In Dual Ring Topology, two ring networks are formed, and data flow is in opposite direction in them. Also, if one ring fails, the second ring can act as a backup, to keep the network up.

Data is transferred in a sequential manner that is bit by bit. Data transmitted, has to pass through each node of the network, till the destination node. Advantages of Ring Topology Transmitting network is not affected by high traffic or by adding more nodes, as only the nodes having tokens can transmit data.

Network topologies

Cheap to install and expand Disadvantages of Ring Topology Troubleshooting is difficult in ring topology. Adding or deleting the computers disturbs the network activity. Failure of one computer disturbs the whole network.

Network topologies

STAR Topology In this type of topology all the computers are connected to a single hub through a cable. This hub is the central node and all others nodes are connected to the central node.

Features of Star Topology Every node has its own dedicated connection to the hub. Hub acts as a repeater for data flow. Can be used with twisted pair, Optical Fibre or coaxial cable. Advantages of Star Topology Fast performance with few nodes and low network traffic.

Hub can be upgraded easily. Easy to setup and modify. Only that node is affected which has failed, rest of the nodes can work smoothly. Disadvantages of Star Topology Cost of installation is high. If the hub fails then the whole network is stopped because all the nodes depend on the hub.

Performance is based on the hub that is it depends on its capacity MESH Topology It is a point-to-point connection to other nodes or devices. All the network nodes are connected to each other.

There are two techniques to transmit data over the Mesh topology, they are: Routing In routing, the nodes have a routing logic, as per the network requirements. Like routing logic to direct the data to reach the destination using the shortest distance.

Or, routing logic which has information about the broken links, and it avoids those node etc. We can even have routing logic, to re-configure the failed nodes.

Flooding In flooding, the same data is transmitted to all the network nodes, hence no routing logic is required.Network Topology refers to the layout of a network and how different nodes in a network are connected to each other and how they communicate.

Topologies are either physical (the physical layout of devices on a network) or logical (the way that the signals act on the network media, or the way that the data passes through the network from one.

A computer network topology is the physical communication scheme used by connected devices. Common network topologies include bus, ring, and star.

A computer network topology is the physical communication scheme used by connected devices. Common network topologies include bus, . LAN (local area network) is an example of network that keeps both logical and physical topologies.

Types of Network Topologies

What are the Basic Types of Topology? There are seven basic types of network topologies in the study of network topology: Point-to-point topology, bus (point-to-multipoint) topology, ring topology, star topology, hybrid topology, mesh topology and tree topology.

What is Network Topology. The physical topology of a network refers to the configuration of cables, computers, and other peripherals. Physical topology should not be confused with logical topology which is the method used to pass information between workstations. Network Topologies Basically a network topology means that, connection style of the network nodes.

To build a Network, we need a network topolog. There are different Network Topologies that can be used for different network scenarios.

The physical topology of a network is the actual geometric layout of workstations. There are several common physical topologies, as described below and as shown in the illustration. In the bus network topology, every workstation is connected to a main cable called the bus. Key Difference: Network topology refers to the arrangement of different devices on the network. Star, ring, mesh, tree and hybrid are main topologies in context to a computer network. Star, ring, mesh, tree and hybrid are main topologies in context to a computer network. Think of a topology as a network's virtual shape or structure. This shape does not necessarily correspond to the actual physical layout of the devices on the network. For example, the computers on a home network may be arranged in a circle in a family room, but it .

Tree Network Topology. Tree topology integrates the star and bus topologies in a hybrid approach to improve network scalability. The network is setup as a hierarchy, usually with at least three levels.

What Are Network Topologies? Webopedia Study Guide