Network Hardware and its
Topologies
CSE306
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
Guidelines and tips
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
An overview of different types of network hardware and their topologies. It covers categories of networks such as personal area networks, local area networks, metropolitan area networks, wide area networks, wireless networks, and home networks. The document also discusses the hierarchical organization of the internet and various physical network topologies like mesh, star, bus, ring, and tree. It highlights the advantages, disadvantages, and applications of these topologies. Additionally, the document touches upon backbone networks, connecting devices like repeaters, hubs, switches, and routers, and the concept of routing. This comprehensive information can be useful for students studying computer networks, network architecture, and related topics in computer science or information technology programs.
Typology: Lecture notes
2021/2022
1 / 53
This page cannot be seen from the preview
Don't miss anything!
Related documents
Partial preview of the text
Download Network Hardware and its Topologies and more Lecture notes Computer science in PDF only on Docsity!
Network Hardware and its
Topologies
CSE
Categories of Networks
• Personal area networks
• Local Area networks
• Metropolitan Area networks
• Wide Area networks
• Wireless Networks
• Home Networks
• Internetworks- The Internet
Local Area Networks (LANs)
- Short distances
- Designed to provide local interconnectivity
Wireless and wired LANs. (a) 802.11. (b) Switched
Ethernet.
Isolated LAN connecting 12 computers to a hub in a
closet
WANs: a switched WAN and a
point-to-point WAN
A heterogeneous network made of four WANs and two LAN
Wireless Networks
- (a) Bluetooth configuration
- (b) Wireless LAN
Wireless Networks
- (a) Individual mobile computers
- (b) A flying LAN
THE INTERNET
- Inter connection of two or more networks become an
internet.
- The Internet has revolutionized many aspects of our daily
lives. It has affected the way we do business as well as the
way we spend our leisure time.
- The Internet is a communication system that has brought a
wealth of information to our fingertips and organized it for
our use.
Hierarchical organization of the Internet
Network Topology
- The topology of a network defines how the nodes of a network are connected.
- The shape of the cabling layout used to link devices is called the physical topology of the network.
- The logical topology , in contrast, is the way that the signals act on the network media, or the way that the data passes through the network from one device to the next without regard to the physical interconnection of the devices.
Categories of Physical Topology
A fully connected mesh topology (five devices)
Advantages of Mesh
- They use dedicated links so each link can only carry its own data load. So traffic problem can be avoided.
- It is robust. If any one link get damaged it cannot affect others.
- It gives privacy and security.(Message travels along a dedicated link)
- Fault identification and fault isolation are easy.