Web Science/Part1: Foundations of the web/Ethernet

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Ethernet

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Learning goals

  1. understand that ethernet is a nondeterministic protocol
  2. be able to understand requirements for the link layer in the TCP/IP Protocol suite
  3. understand the collision detection in ethernet
  4. understand why randomization is a good idea in nondeterministic protocols
  5. be able to name a deterministic link layer protocol
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Associated units

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  1. understand the basic problems when communicating over a shared medium
  2. understand the origins of ethernet
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  • be able to name the ethernet header fields
  • be able to explain the reason for the preamble
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  • understand that the cable length has an influence to transfer rate
  • understand that speed of light is responsible for the connection between cable length and transfer rate
  • be able to calculate the maximum cable length for a given transfer rate
  • understand that the cable length is part of the Ethernet protocol
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  • Understand that Ethernet is a non deterministic program
  • Be able to reconstruct a collision detection / resolve algorithm
  • Understand what happens if two computers send data at the same time
Homework for Web Science MOOC Week 1.pdf
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no learning goals defined
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Further reading

  1. The Webs Awake (An Introduction to the Field of Web Science and the Concept of Web Life by Philip D. Tetlow.
  2. Foundations and Trends in Web Science, Volume 1 Issue 1 by Tim Berners-Lee, Wendy Hall, James A. Hendler, Kieron O'Hara, Nigel Shadbolt and Daniel J. Weitzner.
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