NAME: Muzaffar Hussain

ROLL NO: 1388

Presenter

Network Topologies and its Types

Topic

CONTENT

NETWORK BUS TOPOLOGY RING TOPOGYSTAR TOPOLOGYTOPOLOGY NETWORK

Definition of Network

Types of Network Topology

The Advantages and Disadvantages of Network Topology

Definition of Network Topology

DEFINITION

What is a Network ?

A computer network consist of two or more computers that are linked together in order to share information and other share resources.The computers on a network may linked through cable, telephone lines and satellites etc.

DEFINITION

What is a Topology?

In networking, the term topology is the way of connecting computers or nodes on a network. The way in which computers or other devices are connected in a network is called Network Topology.

TYPES OF NETWORK TOPOLOGY

Three commonly used network topologies are:-

Bus network.

Ring network.

Star network.

STAR TOPOLOGY

All devices connect to acentral device, calledhub.

All data transferredfrom one computer toanother passes through hub.

STAR TOPOLOGY

ADVANTAGE DISADVANTAGE

1) Easy to install and wire. 1) Requires more cable length

than a linear topology.

2) If any node or cable fails,

other nodes are not effected.

2) If the hub or concentrator

fails, nodes attached are

disabled.

3) Easy to detect faults and to

remove parts.

3) More expensive than linear

bus topologies because of

the cost of the hubs.

STARSTAR

BUS TOPOLOGY

All computers and devices connected to central cable or bus.

The central cable is the backbone cable.

The devices or nodes are attached with the bus through interface connecter.

BUS TOPOLOGY

USERUSER USERUSER USERUSER USERUSERUSERUSER

ADVANTAGE DISADVANTAGE

1) Easy to connect computer or

peripheral to a linear bus.

1) Entire network shuts down if

there is a break in the main

cable.

2) Requires less cable length

than a star topology.

2) Terminators are required at

both ends of the backbone

cable.

3) If one node fails, other nodes

are not effected.

3) Difficult to identify the

problem if the entire network

shuts down.

BUSBUS

RING TOPOLOGY

In ring topology, each computer is connected to the next computer and the last is connected to the first.

Data travels from device to device around entire ring, in one direction.

In this way, the last node connects to the first to complete the ring.

RING TOPOLOGY

ADVANTAGE DISADVANTAGE

1) It is less expensive than star topology.

1) Adding or removing a computer from network effects the whole networks.

2) It is easy to install and to

maintain.

2) If any of the nodes fail then the

ring is broken and data cannot

be transmitted successfully. 3) It is difficult to troubleshoot

the ring.

RINGRING