Ethernet

Network Fundamentals – Chapter 9

© 2007 Cisco Systems, Inc. All rights reserved.

Cisco Public

1
Objectives


Identify the basic characteristics of network media used in
Ethernet.



Describe the physical and data lin...
Characteristics of Network Media used in
Ethernet
 Identify several characteristics of Ethernet in its early
years.

© 20...
Characteristics of Network Media used in
Ethernet
 Describe the emergence of the LAN switch as a key
innovation for manag...
Characteristics of Network Media used in
Ethernet
 Identify the characteristics of state-of-the-art Ethernet
and describe...
Physical and Data Link Features of Ethernet
 Standards and Implementation

© 2007 Cisco Systems, Inc. All rights reserved...
Physical and Data Link Features of Ethernet
 Describe how the Ethernet operates across two layers
of the OSI model

© 200...
Physical and Data Link Features of Ethernet
 Logic Link Control – Connecting the Upper Layers

© 2007 Cisco Systems, Inc....
Physical and Data Link Features of Ethernet
 Media Access Control (MAC)

© 2007 Cisco Systems, Inc. All rights reserved.
...
Physical and Data Link Features of Ethernet
 Physical Implementations of the Ethernet

© 2007 Cisco Systems, Inc. All rig...
Function and Characteristics of the Media
Access Control Method
 MAC in Ethernet

© 2007 Cisco Systems, Inc. All rights r...
Function and Characteristics of the Media
Access Control Method
 Carrier Sense Multiple Access with Collision Detection

...
Function and Characteristics of the Media
Access Control Method
 Ethernet Timing

© 2007 Cisco Systems, Inc. All rights r...
Layer 2 addressing and its Impact on Network
Operation and Performance
 The Frame – Encapsulating the Packet

© 2007 Cisc...
Layer 2 addressing and its Impact on Network
Operation and Performance
 The Ethernet MAC Address

© 2007 Cisco Systems, I...
Layer 2 addressing and its Impact on Network
Operation and Performance
 Hexadecimal Numbering and Addressing

© 2007 Cisc...
Layer 2 addressing and its Impact on Network
Operation and Performance
 Another Layer of Addressing

© 2007 Cisco Systems...
Layer 2 addressing and its Impact on Network
Operation and Performance
 Ethernet Unicast, Multicast and Broadcast

© 2007...
Compare and Contrast the Use of Ethernet
Switches versus Hubs in a LAN.
 Legacy Ethernet – Using Hubs

© 2007 Cisco Syste...
Compare and Contrast the Use of Ethernet
Switches versus Hubs in a LAN.
 Ethernet – Using Switches

© 2007 Cisco Systems,...
Compare and Contrast the Use of Ethernet
Switches versus Hubs in a LAN.
 Describe how a switch can eliminate collisions, ...
Explain the Address Resolution Protocol (ARP)
process.
 Mapping IP to MAC Addresses

© 2007 Cisco Systems, Inc. All right...
Explain the Address Resolution Protocol (ARP)
process.
 ARP – Destinations Outside the Local Network

© 2007 Cisco System...
Explain the Address Resolution Protocol (ARP)
process.
 ARP – Removing Address Mappings

© 2007 Cisco Systems, Inc. All r...
Explain the Address Resolution Protocol (ARP)
process.
 ARP Broadcasts - Issues

© 2007 Cisco Systems, Inc. All rights re...
Summary

© 2007 Cisco Systems, Inc. All rights reserved.

Cisco Public

26
© 2007 Cisco Systems, Inc. All rights reserved.

Cisco Public

27
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Exploration network chapter9

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Exploration network chapter9

  1. 1. Ethernet Network Fundamentals – Chapter 9 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 1
  2. 2. 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. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 2
  3. 3. Characteristics of Network Media used in Ethernet  Identify several characteristics of Ethernet in its early years. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 3
  4. 4. 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 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 4
  5. 5. 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 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 5
  6. 6. Physical and Data Link Features of Ethernet  Standards and Implementation © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 6
  7. 7. Physical and Data Link Features of Ethernet  Describe how the Ethernet operates across two layers of the OSI model © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 7
  8. 8. Physical and Data Link Features of Ethernet  Logic Link Control – Connecting the Upper Layers © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 8
  9. 9. Physical and Data Link Features of Ethernet  Media Access Control (MAC) © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 9
  10. 10. Physical and Data Link Features of Ethernet  Physical Implementations of the Ethernet © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 10
  11. 11. Function and Characteristics of the Media Access Control Method  MAC in Ethernet © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 11
  12. 12. Function and Characteristics of the Media Access Control Method  Carrier Sense Multiple Access with Collision Detection © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 12
  13. 13. Function and Characteristics of the Media Access Control Method  Ethernet Timing © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 13
  14. 14. Layer 2 addressing and its Impact on Network Operation and Performance  The Frame – Encapsulating the Packet © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 14
  15. 15. Layer 2 addressing and its Impact on Network Operation and Performance  The Ethernet MAC Address © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 15
  16. 16. Layer 2 addressing and its Impact on Network Operation and Performance  Hexadecimal Numbering and Addressing © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 16
  17. 17. Layer 2 addressing and its Impact on Network Operation and Performance  Another Layer of Addressing © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 17
  18. 18. Layer 2 addressing and its Impact on Network Operation and Performance  Ethernet Unicast, Multicast and Broadcast © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 18
  19. 19. Compare and Contrast the Use of Ethernet Switches versus Hubs in a LAN.  Legacy Ethernet – Using Hubs © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 19
  20. 20. Compare and Contrast the Use of Ethernet Switches versus Hubs in a LAN.  Ethernet – Using Switches © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 20
  21. 21. 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 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 21
  22. 22. Explain the Address Resolution Protocol (ARP) process.  Mapping IP to MAC Addresses © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 22
  23. 23. Explain the Address Resolution Protocol (ARP) process.  ARP – Destinations Outside the Local Network © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 23
  24. 24. Explain the Address Resolution Protocol (ARP) process.  ARP – Removing Address Mappings © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 24
  25. 25. Explain the Address Resolution Protocol (ARP) process.  ARP Broadcasts - Issues © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 25
  26. 26. Summary © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 26
  27. 27. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 27

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