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Network Topologies and Criteria in Computer Networks

This lecture summary covers topics such as distributed processing, network criteria, physical structures, network models, and categories of networks. Various network topologies like mesh, star, bus, ring, hybrid, and isolated LAN are discussed, along with LAN, MAN, and WAN concepts. The lecture also delves into WAN types, including switched and point-to-point WANs, and explores a heterogeneous network comprising WANs and LANs, and the hierarchical organization of the Internet.

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Network Topologies and Criteria in Computer Networks

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  1. Computer Networks Lecture 3

  2. Lecture Summary Network (continue) Topics discussed in this section: • Distributed Processing • Network Criteria Lecture 3 Content • Physical Structures • Network Models • Categories of Networks • Interconnection of Networks: Internetwork Covered in Lecture 2

  3. Categories of topology 1.3

  4. A fully connected mesh topology (five devices) 1.4

  5. A star topology connecting four stations 1.5

  6. A bus topology connecting three stations 1.6

  7. A ring topology connecting six stations 1.7

  8. A hybrid topology: a star backbone with three bus networks 1.8

  9. An isolated LAN connecting 12 computers to a hub in a closet 1.9

  10. LAN, MAN & WAN Introduction to Computer Networks • Network in small geographical Area (Room, Building or a Campus) is called LAN (Local Area Network) • Network in a City is call MAN (Metropolitan Area Network) • Network spread geographically (Country or across Globe) is called WAN (Wide Area Network)

  11. Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level

  12. Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level

  13. Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level

  14. WANs: a switched WAN and a point-to-point WAN 1.14

  15. A heterogeneous network made of four WANs and two LANs 1.15

  16. Hierarchical organization of the Internet 1.16

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