Ethernet Network Fundamentals Chapter 9 ITE PC v

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Ethernet Network Fundamentals – Chapter 9 ITE PC v 4. 0 Chapter 1 ©

Ethernet Network Fundamentals – Chapter 9 ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 1

Objectives § Identify the basic characteristics of network media used in Ethernet. § Describe

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. ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 2

Characteristics of Network Media used in Ethernet § Identify several characteristics of Ethernet in

Characteristics of Network Media used in Ethernet § Identify several characteristics of Ethernet in its early years. ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 3

Characteristics of Network Media used in Ethernet § Describe the emergence of the LAN

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 ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 4

Characteristics of Network Media used in Ethernet § Identify the characteristics of state-of-the-art Ethernet

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 ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 5

Physical and Data Link Features of Ethernet § Standards and Implementation ITE PC v

Physical and Data Link Features of Ethernet § Standards and Implementation ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 6

Physical and Data Link Features of Ethernet § Describe how the Ethernet operates across

Physical and Data Link Features of Ethernet § Describe how the Ethernet operates across two layers of the OSI model ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 7

Physical and Data Link Features of Ethernet § Logic Link Control – Connecting the

Physical and Data Link Features of Ethernet § Logic Link Control – Connecting the Upper Layers ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 8

Physical and Data Link Features of Ethernet § Media Access Control (MAC) ITE PC

Physical and Data Link Features of Ethernet § Media Access Control (MAC) ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 9

Physical and Data Link Features of Ethernet § Physical Implementations of the Ethernet ITE

Physical and Data Link Features of Ethernet § Physical Implementations of the Ethernet ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 10

Function and Characteristics of the Media Access Control Method § MAC in Ethernet ITE

Function and Characteristics of the Media Access Control Method § MAC in Ethernet ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 11

Function and Characteristics of the Media Access Control Method § Carrier Sense Multiple Access

Function and Characteristics of the Media Access Control Method § Carrier Sense Multiple Access with Collision Detection ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 12

Function and Characteristics of the Media Access Control Method § Ethernet Timing ITE PC

Function and Characteristics of the Media Access Control Method § Ethernet Timing ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 13

Layer 2 addressing and its Impact on Network Operation and Performance § The Frame

Layer 2 addressing and its Impact on Network Operation and Performance § The Frame – Encapsulating the Packet ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 14

Layer 2 addressing and its Impact on Network Operation and Performance § The Ethernet

Layer 2 addressing and its Impact on Network Operation and Performance § The Ethernet MAC Address ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 15

Layer 2 addressing and its Impact on Network Operation and Performance § Hexadecimal Numbering

Layer 2 addressing and its Impact on Network Operation and Performance § Hexadecimal Numbering and Addressing ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 16

Layer 2 addressing and its Impact on Network Operation and Performance § Another Layer

Layer 2 addressing and its Impact on Network Operation and Performance § Another Layer of Addressing ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 17

Layer 2 addressing and its Impact on Network Operation and Performance § Ethernet Unicast,

Layer 2 addressing and its Impact on Network Operation and Performance § Ethernet Unicast, Multicast and Broadcast ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 18

Compare and Contrast the Use of Ethernet Switches versus Hubs in a LAN. §

Compare and Contrast the Use of Ethernet Switches versus Hubs in a LAN. § Legacy Ethernet – Using Hubs ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 19

Compare and Contrast the Use of Ethernet Switches versus Hubs in a LAN. §

Compare and Contrast the Use of Ethernet Switches versus Hubs in a LAN. § Ethernet – Using Switches ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 20

Compare and Contrast the Use of Ethernet Switches versus Hubs in a LAN. §

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 ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 21

Explain the Address Resolution Protocol (ARP) process. § Mapping IP to MAC Addresses ITE

Explain the Address Resolution Protocol (ARP) process. § Mapping IP to MAC Addresses ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 22

Explain the Address Resolution Protocol (ARP) process. § ARP – Destinations Outside the Local

Explain the Address Resolution Protocol (ARP) process. § ARP – Destinations Outside the Local Network ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 23

Explain the Address Resolution Protocol (ARP) process. § ARP – Removing Address Mappings ITE

Explain the Address Resolution Protocol (ARP) process. § ARP – Removing Address Mappings ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 24

Explain the Address Resolution Protocol (ARP) process. § ARP Broadcasts - Issues ITE PC

Explain the Address Resolution Protocol (ARP) process. § ARP Broadcasts - Issues ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 25

Summary ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All

Summary ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 26

ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights

ITE PC v 4. 0 Chapter 1 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 27