Lesson 22. Networking Tools

Objective

At the end of this Presentation, you will be able to:

• Explain the purpose of the “Fox and Hound” toner and describe briefly how it works.

• Explain the purpose of the Cable Tester and describe briefly how it works.

• Explain the purpose of the Time Domain Reflectometer (TDR) and describe briefly how it works.

• List three analysis tools provided with Windows NT/2000 family Server.

• Explain the purpose of the Performance Monitor/Console provided in Windows NT/2000 family Server.

• Explain the purpose of a punch-down tool.

Network+ Domain covered:

• 3.3

Cabling Questions

• “Is this the right cable?”• “Is this cable good?”

Is this the right cable?

Toners

• Also called “Fox and Hound”• Use to locate or trace cables• The “Fox” generates a tone and injects it

into a cable.• The “Hound” detects the tone and finds the

cable.

RJ11 or RJ45

BNC

Alligator Clips

Tone Generator“FOX”

ProbeTip

Tone Detector“Hound”

HeadphoneJack

Speaker

Tone DetectorHound

Tone GeneratorFOX

Ethernet 8-Port Hub

BNC

1 2 3 4 5 6 7 8

Tone GeneratorFOXWARNIN

G!

Cable Problems

• Open• Short• Reversed wires• Too long• EMI

Cable Tester

• Answers the question: “Is this cable good?”• Inexpensive models detect opens, shorts,

and reversed wires.• More expensive models may also indicate

cable runs that are too long, the location of an open or short, and EMI.

Cable Tester

PR1

PR2

PR3

PR4

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8

RJ45Jack

RJ45Jack

Pair LEDs

Wire LEDs

Switches

Cable Tester

PR1

PR2

PR3

PR4

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8

SuspectCable

SecondCable

SuspectCable

Cable Tester

PR1

PR2

PR3

PR4

1 2 3 4 5 6 7 8

1 2 3 4 5 6 7 8PatchCable

Cables inWall

Mode

Enter

Help

Autotest1 3

4 5 6

7 8 9

#*

2

0

F1

F2

F3

F4

Time Domain Reflectometer (TDR)

Mode

Enter

Help

Autotest1

345

678

9#

*

2

0

Good!

F1 F

2 F3 F

4

Using the TDR

A faulty cable produces reflections.

Mode

Enter

Help

Autotest1

345

678

9#

*

2

0

Open!30 Meters

F1 F

2 F3 F

4

The Protocol Analyzer

• Hardware or Software Implementations• Captures, displays, and analyzes packets• Used for analyzing the nature of the traffic

sent across the network.

Protocol Analyzer Modes

• Display packets selectively in real time.• Capture selected packets for later analysis.• Rebroadcast captured data streams.

Both Windows NT Server and Windows 2000/2003 Server

have a Software Implementation of a Protocol

Analyzer.

Windows NT/2000 Server’s Protocol Analyzer.

• Called “Network Monitor”• Found in Administrative Tools• May have to be installed from the Windows

NT/2000 Server CD.

Network Monitor

• Windows NT Server’s software implementation of a protocol analyzer.

• Used for analyzing the nature of the traffic sent across the network.

• Display packets selectively in real time.• Capture selected packets for later analysis.

Task Manager

• Used to determine which tasks and applications are running and the status of each, allowing you to shut down ones that are in trouble.

• Indicates which processes are running, allowing you to shut down ones that are causing problems.

• Gives a quick overview of CPU and memory usage.

Performance Monitor/Console

• Observe and chart the “vital signs” of the server. • Create logs which show network performance.• Track and log over 250 different characteristics

of the server.• With the proper software, monitor the vital signs

of workstations as well.

Start | Programs | Administrative Tools (Common) | Performance Manager

Performance Monitor Modes

• Chart – Create custom charts to monitor selected server performance characteristics.

• Alert – Create a file showing the instances when selected values are exceeded.

• Log – Capture and log data over a long period to indicate trends.

• Report – Creates simple reports from log files.

Select the “Object” you wish to chart.

Select the “Counter” you wish to chart.

Server Idle

Server Busy

Punch-Down Tool

UTP in Punch-Down Block

• Explain the purpose of the “Fox and Hound” toner and describe briefly how it works.

• Explain the purpose of the Cable Tester and describe briefly how it works.

• Explain the purpose of the Time Domain Reflectometer (TDR) and describe briefly how it works.

• List three analysis tools provided with Windows NT/2000 Server.

• Explain the purpose of the Performance Monitor/Console provided in Windows NT 2000 Server.

• Explain the purpose of a punch-down tool.