CCNA Exploration 1 - Chapter 9

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  • 1. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 1 Ethernet Network Fundamentals – Chapter 9
  • 2. 2© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Objectives  Identify the basic characteristics of network media used in Ethernet.  Describe the physical and data link features of Ethernet.  Describe the function and characteristics of the media access control method used by Ethernet protocol.  Explain the importance of Layer 2 addressing used for data transmission and determine how the different types of addressing impacts network operation and performance.  Compare and contrast the application and benefits of using Ethernet switches in a LAN as apposed to using hubs.  Explain the ARP process.
  • 3. 3© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Characteristics of Network Media used in Ethernet  Identify several characteristics of Ethernet in its early years.
  • 4. 4© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Characteristics of Network Media used in Ethernet  Describe the emergence of the LAN switch as a key innovation for managing collisions on Ethernet-based networks
  • 5. 5© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Characteristics of Network Media used in Ethernet  Identify the characteristics of state-of-the-art Ethernet and describe its utilization of cabling and point-to-point topography
  • 6. 6© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Physical and Data Link Features of Ethernet  Standards and Implementation
  • 7. 7© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Physical and Data Link Features of Ethernet  Describe how the Ethernet operates across two layers of the OSI model
  • 8. 8© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Physical and Data Link Features of Ethernet  Logic Link Control – Connecting the Upper Layers
  • 9. 9© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Physical and Data Link Features of Ethernet  Media Access Control (MAC)
  • 10. 10© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Physical and Data Link Features of Ethernet  Physical Implementations of the Ethernet
  • 11. 11© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Function and Characteristics of the Media Access Control Method  MAC in Ethernet
  • 12. 12© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Function and Characteristics of the Media Access Control Method  Carrier Sense Multiple Access with Collision Detection
  • 13. 13© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Function and Characteristics of the Media Access Control Method  Ethernet Timing
  • 14. 14© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Layer 2 addressing and its Impact on Network Operation and Performance  The Frame – Encapsulating the Packet
  • 15. 15© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Layer 2 addressing and its Impact on Network Operation and Performance  The Ethernet MAC Address
  • 16. 16© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Layer 2 addressing and its Impact on Network Operation and Performance  Hexadecimal Numbering and Addressing
  • 17. 17© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Layer 2 addressing and its Impact on Network Operation and Performance  Another Layer of Addressing
  • 18. 18© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Layer 2 addressing and its Impact on Network Operation and Performance  Ethernet Unicast, Multicast and Broadcast
  • 19. 19© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Compare and Contrast the Use of Ethernet Switches versus Hubs in a LAN.  Legacy Ethernet – Using Hubs
  • 20. 20© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Compare and Contrast the Use of Ethernet Switches versus Hubs in a LAN.  Ethernet – Using Switches
  • 21. 21© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Compare and Contrast the Use of Ethernet Switches versus Hubs in a LAN.  Describe how a switch can eliminate collisions, backoffs and re- transmissions, the leading factors in reduced throughput on a hub-based Ethernet network
  • 22. 22© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Explain the Address Resolution Protocol (ARP) process.  Mapping IP to MAC Addresses
  • 23. 23© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Explain the Address Resolution Protocol (ARP) process.  ARP – Destinations Outside the Local Network
  • 24. 24© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Explain the Address Resolution Protocol (ARP) process.  ARP – Removing Address Mappings
  • 25. 25© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Explain the Address Resolution Protocol (ARP) process.  ARP Broadcasts - Issues
  • 26. 26© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public Summary
  • 27. 27© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public