TYPES
OF
NETWORK
TOPOLOGY
MESH TOPOLOGY
Also called mesh topology or a mesh network, mesh is a network topology in which devices are connected with many redundant interconnections between network nodes. In a true mesh topology every node has a connection to every other node in the network.
There are two types of mesh topologies : full mesh and partial mesh.
Full mesh topology occurs when every node has a circuit connecting it to every other node in a network. Full mesh is very expensive to implement but yields the greatest amount of redundancy, so in the event that one of those nodes fails, network traffic can be directed to any of the other nodes. Full mesh is usually reserved for backbone networks.
Partial mesh topology is less expensive to implement and yields less redundancy than full mesh topology. With partial mesh, some nodes are organized in a full mesh scheme but others are only connected to one or two in the network. Partial mesh topology is commonly found in peripheral networks connected to a full meshed backbone.
STAR TOPOLOGY
Star Topology: In a star network devices are connected to a central computer, called a hub. Nodes communicate across the network by passing data through the hub.
A Star network is one of the most common computer network topologies. In its simplest form, a star network consists of one central hub which acts as a conduit to transmit messages. In star topology, every host is connected to a central hub. A star network is an implementation of a spoke–hub distribution paradigm in computer networks.
The hub and hosts, and the transmission lines between them, form a graph with the topology of a star. Data on a star network passes through the hub before continuing to its destination. The hub manages and controls all functions of the network. It also acts as a repeater for the data flow.
RING TOPOLOGY
Rings can be unidirectional, with all traffic travelling either clockwise or anticlockwise around the ring, or bidirectional (as in SONET/SDH ). Because a unidirectional ring topology provides only one pathway between any two nodes, unidirectional ring networks may be disrupted by the failure of a single link.[1] A node failure or cable break might isolate every node attached to the ring. In response, some ring networks add a "counter-rotating ring" (C-Ring) to form a redundant topology: in the event of a break, data are wrapped back onto the complementary ring before reaching the end of the cable, maintaining a path to every node along the resulting C-Ring.
HYBRID TOPOLOGY
- The Hybrid Topology can be a combination of two or more basic topologies , such as bus , mesh, ring , star, or tree
- Hybrid networks combine two or more than two topologies , which , in turn , enables you to get advantages of the constituent topologies
LINEAR BUS TOPOLOGY
Linear bus topology is a type of network topology in which each device is connected one after the other in a sequential chain (shown right). In this case, the bus is the network connection between the devices, and if any link in the network chain is severed, all network transmission is halted.
Linear Bus is a linear bus topology consists of a main run of cable with a terminator at each end All nodes (file server, workstations, and peripherals) are connected to the linear cable.
- Sources -
https://en.wikipedia.org/wiki/Topology
http://computernetworkingtopics.weebly.com/linear-bus-topology.html
https://en.wikipedia.org/wiki/Network_topology#Hybrid
https://en.wikipedia.org/wiki/Mesh_networking
https://en.wikipedia.org/wiki/Star_network
