html5-img
1 / 25

Introduction to Technology Infrastructure

Introduction to Technology Infrastructure. Chapter 1. Announcements and Outline. Syllabus Questions Class Survey Results Class Outline 1.Introduction to Networks 1.1 Network Types/Technologies 1.2 Layering and Packetization. 2. 1.1 Network Types/Technologies.

nerea-atkins
Télécharger la présentation

Introduction to Technology Infrastructure

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Introduction to Technology Infrastructure Chapter 1

  2. Announcements and Outline • Syllabus Questions • Class Survey Results • Class Outline 1.Introduction to Networks 1.1 Network Types/Technologies 1.2 Layering and Packetization 2

  3. 1.1 Network Types/Technologies • How we view a network geographically • Representing Networks in diagrams 3

  4. 1.1 Network Types/Technologies 4

  5. 1.1 Network Types/Technologies Local Area Networks (LAN) Wireless Local Area Networks (WLAN) Backbone MAN WAN 5

  6. 1.2 Network Layers • Most Commonly Used Models: • OSI (Open Systems Interconnection Reference Model) • Network Model • Protocols & Protocol Data Unit (PDU) 6

  7. 1.2 Network Layers (Network Model) 7

  8. 1.2 Network Layers (CCNA TCP/IP Model) 8

  9. 1.2 Network Layers – Packetization *From Agarwal – Business Data Communications • Packetization is • breaking down user data into small segments • packaging these segments appropriately so that they can be delivered and reassembled across the network 9

  10. 1.2 Network Layers – 5 Important Data Comm. Tasks

  11. 1.2 Network Layers • APPLICATION LAYER • Software used by the users • Common Examples: • Protocols: • PDU: 11

  12. 1.2 Network Layers • TRANSPORT LAYER • End to end management • Responsibilities: (1) Link Applications Layer • Segmenting and Tracking • Session Management 12

  13. 1.2 Network Layers TRANSPORT LAYER (cont.) Protocols: PDU: 13

  14. 1.2 Network Layers • NETWORK LAYER • Decides where the messages should go • Functions: • Addressing • Routing • Protocol: • PDU: 14

  15. 1.2 Network Layers • DATA LINK LAYER • Moves messages from one computer to the next • Functions: • Controls Hardware • Formats Messages • Error Checking • Protocol: • PDU: 15

  16. 1.2 Network Layers • PHYSICAL LAYER • Hardware that transmits the message • Protocols: • PDU: 16

  17. 1.2 Network Layers - Summary 17

  18. Network Model technologies by layer 18

  19. 1.2 Network Layers - Summary 19

  20. 1.2 Network Layers – Msg Transmission 20

  21. 1.2 Network Layers Standards • IEEE (Institute of Electrical and Electronics Engineering) – develops US standards • Formal Standardization Process • Internet technology standards are publicly available as Requests For Comment (RFCs) • http://www.ietf.org/rfc.html • Highly recommended standards • Email: http://www.ietf.org/rfc/rfc0821.txt • HTTP: http://www.ietf.org/rfc/rfc2616.txt • TCP: http://www.ietf.org/rfc/rfc0793.txt • IP: http://www.ietf.org/rfc/rfc0791.txt • TCP/ IP tutorial: http://www.ietf.org/rfc/rfc1180.txt • Domain names: http://www.ietf.org/rfc/rfc1034.txt 21

  22. Pros and Cons of using Layers CONS: 22

  23. Pros and Cons of using Layers PROS: 23

  24. Recap • Network Types 1.1 Network Types • LAN • WLAN • Backbone • WAN 1.2 Network Layers • Network Model • Standards • Pros/Cons 24

  25. Next Week • Chapter 2 – Application Layer • Hardware • Software Architecture • Web • Email • Remember no classon Monday (Campus Holiday) 25

More Related