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

ITE PC v4.0

Chapter 1 1

Planning and Cabling Networks

Network Fundamentals – Chapter 10

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Chapter 1 2© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Select the appropriate hardware, including the cabling, to install several computers together in a LAN

Requirements to make a LAN Connection

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Chapter 1 3© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

To identify some key aspects of the devices they will be employing in a LAN

Requirements to make a LAN Connection

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Chapter 1 4© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Requirements to make a LAN Connection

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Chapter 1 5© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Requirements to make a LAN Connection

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Chapter 1 6© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Requirements to make a LAN Connection

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Chapter 1 7© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Types of Connections in a LAN Given a specific network connection, identify the type of

cable required to make the connection

(vertical cabling)

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Chapter 1 8© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Types of Connections in a LAN Identify the correct cable to use in connecting

intermediate and end devices in a LAN.

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Chapter 1 9© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Types of Connections in a LAN

Straight-through Crossover

Inside the LAN

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Chapter 1 10© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Types of Connections in a LAN Connect a LAN to a WAN

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Chapter 1 11© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Types of Connections in a LAN Device Management

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Chapter 1 12© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Making WAN connections

Data Communications Equipment (DCE)

supplies the clocking services to another device

typically, it’s at the WAN access provider end of the link

Data Terminal Equipment (DTE)

receives clocking from another device and adjusts accordingly

typically, it’s at the WAN customer or user end of the link

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Chapter 1 13© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Making WAN connections

The V35 compliant cables are available in DTE and DCE versions.

(Lab example)

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Chapter 1 14© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Example device interfaces

LAN Interfaces – Ethernet

WAN Interfaces – Serial

Console Interface

Auxiliary (AUX) Interface

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Chapter 1 15© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Importance of Network Designs Determine the total number of hosts in a network,

accounting for present and future requirements

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Chapter 1 16© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Importance of Network Designs Given a network requirement, determine the optimum

number of sub networks in the larger internetwork.

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Chapter 1 17© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Reasons to divide a network:

Manage Broadcast Traffic

Different Network Requirements

Security

How many subnets?

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Chapter 1 18© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Calculating addresses - Example

Student LAN:Student Computers: 460

Router (LAN Gateway): 1

Switches (management): 20

Total: 481

Instructor LANInstructor Computers: 64

Router (LAN Gateway): 1

Switches (management): 4

Total: 69

Administrator LANAdministrator Computers: 20

Server: 1

Router (LAN Gateway): 1

Switch (management): 1

Total: 23

WAN Router - Router WAN: 2

Total: 2

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Chapter 1 19© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Example without VLSM

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Chapter 1 20© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Example with VLSM

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Chapter 1 21© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public