A Network Topology is the arrangement with which computer systems or network devices are connected to each other. Topologies may define both physical and logical aspect of the network. Both logical and physical topologies could be same or different in a same network. A Network Topology is the physical and logical arrangement of nodes and connections in a network. ▶ Physical Topology describes the layout of devices and cables, and Logical Topology describes the way in which data is transmitted within the network- regardless of the physical layout.

1. Dhaka International University
Batch: 46th
Semester: 1st
Submitted To: SumanAhmed Saikan
Lecturer
Department of CSE
Dhaka International University
Department of Sociology
Course Name: Introduction to Computer & Information Technology
Course No: 0611-1101
Computer Network Topology

2. Team Initiator
Mizan Ibne Hossain AfsanaAhmed Monalisa Islam Md. Rahim

3. Outline Introduction
Topology Type
Bus Topology
Ring Topology
Star Topology
Mesh Topology
Tree Topology

4. Introduction
▶ A Network Topology is the physical and logical arrangement of nodes and connections in a
network.
▶ Physical Topology describes the layout of devices and cables, and Logical Topology
describes the way in which data is transmitted within the network- regardless of the physical
layout.

5. Network Topology
▶ Different types of network topologies
1) Bus topology
2) Ring topology
3) Star topology
4
) Tree topology
5) Mesh topology

6. Bus topology
▶ All data transmitted between nodes in
the network is transmitted over this
common transmission medium and is
able to be received by all nodes on the
network simultaneously.
▶ A signal containing the address of the
intended receiving machine travels
from a source machine in both direction
to all machines connected to the bus
until it finds the intended recipient.

7. Bus topology
Advantages
▶ Only one wire –Less
expensive.
▶ Suited for temporary network.
▶ Node failures does not affect
others.
Disadvantages
▶ Not fault to tolerant ( No
redundancy )
▶ Limited Cable length.
▶ No security.

8. Ring topology
▶ A ring topology is a bus
topology in a closed loop.
▶ Peer-to-peer LAN topology.
▶ T
wo connection : one to each
of its nearest neighbors.
▶ Unidirectional.
▶ Sending and receiving data
takes place the help of a
token.

9. Ring topology
Advantages
 Performance better than Bus
topology.
 Can cause bottleneck due to
weak links.
 All nodes with equal access.
Disadvantages
 Unidirectional. Single point of
failure will affect the whole
network.
 In load –in performance.
 No security.

10. Star topology
▶ Every node is connected to
a central node called a
hub or switch.
▶ Centralized Management.
▶ All traffic must pass through
the hub or switch.

11. Star topology
Advantages
▶ Easy to design and implement.
▶ Centralized administration.
▶ Scalable.
Disadvantages
▶ Single point of failure affects
whole network.
▶ Bottlenecks due to overloaded
switch/Hub.
▶ Increased cost due to switch/Hub.

12. Mesh topology
▶ Each node is directly connected to every other nodes in
the network.
▶ Fault tolerant and reliable.

13. Mesh topology
Advantage
▶ Fault tolerant.
▶ Reliable.
Disadvantage
▶ Issues with broadcasting
messages.
▶ Expensive and impractical
for large networks.

14. Tree topology
▶ computer networking, tree
topology isa type of network
topology that resembles a
tree. Tree typologies are
often used to create large
networks.

15. Tree topology
Advantages
▶ It can support a large number
of nodes.
▶ Itcan be easily expanded.
▶ Additionally, tree topologies
are highly scalable and can
be easily reconfigured.
used.
Disadvantages
▶ This network is very difficult to configure as
compared to the other networktopologies.
▶ The length of a segment is limited & the limit of
the segment depends on the type of cabling
▶ Due to the presence of a large number of nodes,
the network performance of tree topology
becomes a bit slow.

16. Thank you