Network Topologies

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What is network?
Network topology is the arrangement of a network.

Point-to-Point Topology
Description
Point-to-point topology are two devices directly connected to each other.
Diagram

Advantages
  1. Directly connected to each other so it is faster when sending messages.
  2. It is easy to set up the network.
Disadvantages
  1. Only 2 host can connect to each other.
  2. Cannot send messages when one PC is broken.
Bus Topology
Description
The devices are connected in one cable only.
Diagram

Advantages
  1. It is not expensive.
  2. It is easier to add another devices.
Disadvantages
  1. If 1 device is broken in the cable, the other devices cannot send messages.
  2. There will be traffic if many hosts sent at a time.

Star Topology
Description
One network device are connected to many hosts.
Diagram

Advantages
  1. There is no traffic.
  2. If 1 PC is not functioning, the others are not affected.
Disadvantages
  1. It is expensive because network device are needed.
  2. If network device is broken, the PC will don't have a connection.

Ring Topology
Description
Each host is directly connected to each other.
Diagram

Advantages
  1. The connection is fast because only one can sent at a time.
  2. Easier to add another host to the network.
Disadvantages
  1. Only one host can sent at a time.
  2. No privacy in this network which means it is broadcast to everyone.

Mesh Topology
Description
One host is connected to many hosts.
Diagram

Advantages
  1. Sending message is faster.
  2. If one cable is broken, there is another way to communicate.
Disadvantages
  1. It is expensive because many cables are needed.
  2. It is hard to set up the network.

Tree Topology
Description
It is a common network that is used nowadays and it is known as hierarchical topology.
Diagram

Advantages
  1. If one switch is broken, another switch is still functioning.
  2. It is easy to set up or add another hosts.
Disadvantages
  1. It is expensive to set up the network.
  2. If the distribution layer broken, it will not be functioning.

References

  • ARTICLES, T., PRODUCTS, N., ELECTRONICS, G., PROJECTS, C., MICRO, E., Lectures, V., Webinars, I., Training, I., Search, P., DB, T., Tool, B. and Search, D. (2018). Network Topology | Digital Communication | Electronics Textbook. [online] Allaboutcircuits.com. Available at: https://www.allaboutcircuits.com/textbook/digital/chpt-14/network-topology/ [Accessed 23 Apr. 2018].
  • Bus Topology. Computer, p. (2018). Bus Topology stock illustration. Illustration of computer - 50152734. [online] Dreamstime.com. Available at: https://www.dreamstime.com/stock-illustration-bus-topology-d-image-network-image50152734 [Accessed 23 Apr. 2018].
  • NetworkLessons.com. (2016). Network Topologies | NetworkLessons.com. [online] Available at: https://networklessons.com/cisco/ccna-routing-switching-icnd1-100-105/network-topologies/ [Accessed 23 Apr. 2018].
  • Sites.google.com. (2018). How does communication take place on bus, ring, star, and mesh networks? - FAQs of computer concepts. [online] Available at: https://sites.google.com/site/faqsofcomputerconcepts/how-does-communication-take-place-on-bus-ring-star-and-mesh-networks [Accessed 23 Apr. 2018].
  • Units.folder101.com. (2018). Chapter 2 - Networking Fundamentals. [online] Available at: http://units.folder101.com/cisco/sem1/Notes/ch2-topologies/toplogies.htm [Accessed 23 Apr. 2018].
  • Flylib.com. (2018). LAN Topologies | Upgrading and Repairing Networks (5th Edition). [online] Available at: https://flylib.com/books/en/4.153.1.16/1/ [Accessed 23 Apr. 2018].

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