Network Typology

Network Typology

Mechia brown 2nd

Typology

 Network topology is the arrangement of the various elements of a
communication network. Network topology is the topological structure of a
network and may be depicted physically or logically

Star Typology

DEFENITION- A star topology is a topology for a Local Area Network (LAN) in which all nodes are individually
connected to a central connection point, like a hub or a switch. A star takes more cable than e.g. a bus.
 FACTS

 The star topology is considered the easiest topology to design and implement.

 An advantage of the star topology is the simplicity of adding additional nodes

 The primary disadvantage of the star topology is that it may need a lot more cables, and if the hub breaks
everything will stop working.

 INFORMATION
The hub, switch, or concentrator manages and controls all functions of the network. It also acts as a repeater
for the data flow. This configuration is common with twisted pair cable; however, it can also be used
with coaxial cable or fiber optic cable.

Ring Typology

 DEFENTION- A ring topology is a network configuration in which device connections create a circular data path.
Each networked device is connected to two others, like points on a circle. Together, devices in a ring topology are
referred to as a ring network.

 FACTS

 Each device incorporates a receiver for the incoming signal and a transmitter to send the data on to the next
device in the ring.

 The network is dependent on the ability of the signal to travel around the ring

 Most ring topologies allow packets to travel only in one direction, called a unidirectional ring network.

 INFORMATION-Ring topologies may be used in either local area networks (LANs) or wide area networks (WANs).
Depending on the type of network card used in each computer of the ring topology, a coaxial cable or a RJ-
45 network cable is used to connect computers together.

Bus Typology

 DEFENITION-In computer architecture, a bus is a communication system that transfers data between
components inside a computer, or between computers. This expression covers all related hardware
components and software, including communication protocols

 FACTS

 It works well when you have a small network.

 It can be hard to troubleshoot individual device issues.

 It requires less cable length than a star topology.

 INFORMATION-Alternatively referred to as a line topology, a bus topology is a network setup in which
each computer and network device are connected to a single cable or backbone. Depending on the
type of network card used in each computer of the bus topology, a coaxial cable or a RJ-45 network
cable is used to connect computers together.

Mesh Typology

 DEFENITION-A mesh network is a local network topology in which the infrastructure
nodes connect directly, dynamically and non-hierarchically to as many other nodes as
possible and cooperate with one another to efficiently route data from/to clients.

 FACTS
 Can handle high amounts of traffic, because multiple devices can transmit data
simultaneously.
 The chance of redundant connections is high, which adds to the high costs and
potential for reduced efficiency.
 Adding additional devices does not disrupt data transmission between other
devices.

 INFORMATION-In a full mesh topology, every computer in the network has a connection
to each of the other computers in that network. The number of connections in this
network can be calculated using the following formula (n is the number of computers in
the network): n(n-1)/2

Tree Typology

 DEFINITION-A tree topology combines characteristics of linear bus and star topologies. It consists of groups of star-
configured workstations connected to a linear bus backbone cable (See fig. 3). Tree topologies allow for the expansion
of an existing network, and enable schools to configure a network to meet their needs.

 FACTS

 In computer programming, tree topologies can be used to structure many kinds of data, including a computer
program itself

 A binary tree is a tree topology in which every node has a maximum of two children. The child nodes are labeled
as "left child" or "right child.“

 A B-Tree is a variation of a binary tree that was invented by Rudolf Bayer and Ed McCreight at Boeing Labs in
1971.

 INFORMATION-A tree topology is a special type of structure in which many connected elements are arranged like the
branches of a tree. For example, tree topologies are frequently used to organize the computers in a
corporate network, or the information in a database.