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Ethernet Fundamentals

Overview CCNA 1 - Module 6 (3.1)

  • Basics of Ethernet technology
  • Naming rules of Ethernet technology
  • How Ethernet relates to the OSI model
  • The framing process and frame structure
  • List Ethernet frame field names and purposes
  • Identify the characteristics of CSMA/CD
  • Describe Ethernet timing, interframe spacing, and backoff time after a collision
  • Define Ethernet errors and collisions
  • Explain the concept of auto-negotiation in relation to speed and duplex

Ethernet Fundamentals

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Introduction to Ethernet

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IEEE Ethernet naming rules

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Ethernet and the OSI model

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Naming

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Layer 2 framing

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Ethernet frame structure

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Ethernet frame fields

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Ethernet Operation

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MAC

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MAC rules and collision detection/backoff

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Carrier sense multiple access and Carrier sense multiple access with collision detection (CSMA/CD)

Ethernet timing

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Interframe spacing and backoff

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Error handling

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Types of collisions

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There are three types of collisions

Ethernet errors

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FCS and beyond

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Ethernet auto-negotiation

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Extra topics (in addition to CCNA)

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Additional resorces (besides Wikipedia)

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Move to 7: Module 6/7 exam questions at Learn Networking

Move to 8: CCNA 3 Discovery Module 5 - in depth info on switches

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