WAN generally covers large distances such as states, countries or continents.
Eg: Local banks have always maintained their business online by connecting all computers of their branches in the countries. International banks also use WAN to connect their computers all over the world.
WAN is a group of MANs or LANs or the mixture of both networks.
A star network is found in a Local Area Network setting.
A star network must have a host which acts as the centre.
The host can be a server, hub or router.
In a star network, every node will not connect to the neighbouring nodes.
Every node must connect to the host in order to communicate.
The host will control the flow of communication in the network.
A star topology consists of a central host which acts as the centre, and all nodes connect to the host. A star topology is also known as star network.
Tree Topology Tree topology is the combination of the bus and the star topology. The tree like structure allows you to have many servers on the network and you can branch out the network on many ways. Also known as hierarchical network. DESCRIPTION OF TREE TOPOLOGY
Nodes of some devices are linked to a centrally located hub which is called the active hub.
The active hub has a hardware device called the repeater.
This strengthens the transmission and increase the travelling distance of a signal.
The secondary hub can isolate communications between different computers.
Mess Topology Mesh Network is a network where all the nodes are connected to each other and is a complete network. In a Mesh Network every node is connected to other nodes on the network through hops. It is called the self healing technology where it receives data one way or the other.
Data is automatically configured to reach the destination by taking the shortest route .
The reliability factor is high in any kind of Mesh Network.
The Mesh Network is based on a very sensible concept and has lesser chances of a network breakdown.
DESCRIPTION OF MESS TOPOLOGY
Differences limited limited many Number of nodes when extending network average difficult easy Ease of adding or removing nodes depends on the host. It is easier to repair the problematic host. However, if the nodes fail, then each node has to be searched depends on backbone. If there is a backbone, troubleshooting is difficult. If there is no backbone, the focus is on the two nodes not communicating difficult. Need to search for the problematic node one by one Ease of troubleshooting network can still run network will fail network can still run Node failure network will fail network will fail network can still run Host failure no yes It has no connection between the nodes. Connection between nodes yes depends on network needs depends on network needs Host existence there is a central host and all nodes connect to it all computers and other devices are connected in a circle there is a single central cable (backbone) and all computers and other devices connect to it Structure Star Topology Ring Topology Bus Topology