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Troubleshooting Software Tools vs. Professional Test Equipment

Troubleshooting Software Tools vs. Professional Test Equipment

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Page 1: Troubleshooting Software Tools vs. Professional Test Equipment

Troubleshooting

Software Tools vs.

Professional Test Equipment

Page 2: Troubleshooting Software Tools vs. Professional Test Equipment

LanXPLORER vs. Software Tools

and the Winner is... ?

Page 3: Troubleshooting Software Tools vs. Professional Test Equipment

Some examples for common network issues:

• No physical connection electrical

• No physical connection optical

• No functional connection

• No logical connection on Layer 3 (IP)

• Poor Network perfomance

• Poor Speech Quality

LanXPLORER vs. Laptop

Page 4: Troubleshooting Software Tools vs. Professional Test Equipment

Loading...READY

While a PC is still bootingA test device already has tested and displayed• Connection Type• Switchport Configuration• PoE• DHCP

let's start our testers!

A field tester takesSeveral seconds to Boot up

LanXPLORER vs. Laptop

Activ Network,WiFi

+Passive Cabling

+PoE(only U&I)

+Bandwith, LoadVoIP

=

A PC takes several minutes to boot up

Page 5: Troubleshooting Software Tools vs. Professional Test Equipment

No physical connection Eletrical

Possible Causes

Wrong Port on patchpanels Tone Generator

Faulty Cable Wiremap

Wrong Pinning Wiremap

Too long Cable (> 100m) Wiremap

LanXPLORER vs. Laptop

Page 6: Troubleshooting Software Tools vs. Professional Test Equipment

No physical connection Optical

Possible Causes

Wrong Port Optical Interface

Errors of Fibers Optical Interface

Power Level is too high/low Statistics

Attenuation Statistics

Very quick identification if link can be established.With the Hub Blink function the LEDs of the switchports are flashing

Mostly Rx and Tx are twisted. This can easily be tried out.

The received an transmitted levels are detected

Attenuation can be evaluated when the fiber is looped at the far end

LanXPLORER vs. Laptop

Page 7: Troubleshooting Software Tools vs. Professional Test Equipment

No functional connection

Possible Causes

Wrong Port Settings CPE Inline Mode(Customer Premises Equipment)

Wrong Port Settings far End Statistics(mostly on switches)

PoE is not delivered / too low Startscreen, PoE

PoE is on the wrong pins PoE Test

Easy scenario to see if the Interface configurations are matching

Does show what partner we are connected to, its link capabilities and its autoneg status

LanXPLORER vs. Laptop

Page 8: Troubleshooting Software Tools vs. Professional Test Equipment

No logical connection (Layer 3 / IP)

Possible Causes

No DHCP Adress Assignment Statistics

Duplicated DHCP Server Statistics

Wrong CPE Configuration PC-Diagnostics(User Equipment, PC, Phone,...)

Does easily show if there are two or more DHCP servers. It happens often due to wrong configuration of network devices

Does show if the device (CPE) is getting its correct DHCP informations. CPE is connected inline and is not removed from the network

LanXPLORER vs. Laptop

Page 9: Troubleshooting Software Tools vs. Professional Test Equipment

Poor Network Performance

Possible Causes

Half Duplex due to wrong settings Statistics

Layer 2 Errors (Mac Layer) Statistcsdue bad cables / fibers

Wrong CPE Configuration PC-Diagnostics

Properties of the network adaptor. CPE must be removedEasy scenario to see if the

Interface configurations are matching (Inline)

LanXPLORER vs. Laptop

Page 10: Troubleshooting Software Tools vs. Professional Test Equipment

Bad VoIP Quality

Possible Causes

Packet Loss, Latency, Jitter VoIP

Network is utilized Inline Statistics

Link is errored Error Counters

Only limited options. Laptop can only work in Endpoint mode and replace the phone. A potential error source is therefore removed from the network

Very good, as the LanXPLORER is inline connected. It is observing from both directions (network and CPE)

LanXPLORER vs. Laptop

Page 11: Troubleshooting Software Tools vs. Professional Test Equipment

ToneGen

Wiremap

Hub Blink

PoE

Loop

WiFi Scan

Netmap:

Netverify

Only limited funtionality with a software, e.g. Wireshark. No Top Ten functionality

A Laptop can only replace a CPE, but not look for its values

requires software and can oly replace a phone. A potential error cause is therefore removed. Troubleshooting is much more difficult.

only some things can be done with software. But o bandwith mesurments, Layer 2 Errors, Partner Configurations, ...

requires additional software

requires additional software

TopTen

Ping

Traceroute

PC-Diag

VoIP

Statistics

Autotest

Functional Summary

LanXPLORER vs. Laptop

Page 12: Troubleshooting Software Tools vs. Professional Test Equipment

LanXPLORER vs. Laptop

Why we don't use laptops…

• Most companies do not accept foreign laptops in their network (virus risk)

• Layer 2 Bandwith evaluation is only calculated from higher layers down to layer 2 and not measured (e.g. freeware "Iperf")

• Most freeware tools are only free for private usage

• In many cases the Laptops firewalls have to be turned off (which is mostly forgotten and test are failing. The failed test are guiding us in the wrong direction.)

• If the firewalls are turned off then many times it is forgotten to switch them on again (virus risk)

• Laptops can only work with traffic which is arriving at all. They are testing on IP-Layer and can therefore not detect Layer 2 and Layer 1 issues

• Protocol analysis and monitoring requires manageable switches (port mirroring)

Page 13: Troubleshooting Software Tools vs. Professional Test Equipment

LanXPLORER vs. Laptop

60% of the switches are unmanaged (Source Siemens)

X X X X X X X XX X X X X X X XX X X X

50% of the managed ones are secured, where the engineers havo no access rights

50% of the engineers do not have sufficient skills for the switchconfiguration

Monitoring with a Laptop can be done here:

Monitoring with the LanXPLORER can be done here!

Monitoring by portmirroring

Page 14: Troubleshooting Software Tools vs. Professional Test Equipment

LanXPLORER vs. Laptop

Simultaneous monitoring in the same network.105 Packets have been monitored with:

LanXPLORER Wireshark

Page 15: Troubleshooting Software Tools vs. Professional Test Equipment

LanXPLORER vs. Laptop

Simultaneous monitoring in the same network.105 Packets have been monitored with:

Wireshark

Very detailled inspection of the arrived packets

Expert Analysis of protocols, content and applications (its intention)

No detection of Layer 2 Network errors.

No detection of faulty connections and links.

Page 16: Troubleshooting Software Tools vs. Professional Test Equipment

LanXPLORER vs. Laptop

Simultaneous monitoring in the same network.105 Packets have been monitored with:

LanXPLORER

• Overview of the most spoken protocols

• No inspection of packets

• Very quick and easy overview about the network status (its intention)

• ARP on place two >>> misconfiguration in the network

• 105 Packets are monitored

• 46 Packets are lost due to FCS errors

• FCS errors are mainly caused by faulty cables or interfaces (Layer 1)

• 151 Packets were reveived in summary

• The lost traffic can not be detected by a Laptop

Page 17: Troubleshooting Software Tools vs. Professional Test Equipment

LanXPLORER vs. Laptop

Simultaneous monitoring in the same network.105 Packets have been monitored with:

LanXPLORER Wireshark

Not comparable

Page 18: Troubleshooting Software Tools vs. Professional Test Equipment

LanXPLORER vs. Laptop

Good for its job Troubleshooting: Good for its job network scanning:

LanXPLORER Perfect Network Scanner

Detailled netmap(enhanced in new release)

and other important things on layer 1 and 2:

Page 19: Troubleshooting Software Tools vs. Professional Test Equipment

LanXPLORER vs. Laptop

Good for its job Troubleshooting: Good for its job pinging

LanXPLORER Ping Plotter

Ping Test

and other important things on layer 1 and 2:

Page 20: Troubleshooting Software Tools vs. Professional Test Equipment

1.Time SavingFind network issues fast and easy

2.Cost SavingReduce the network dowtime Minimize the man-hours for fault finding

3.Easy to useThis product does not even require a manual

4.Clear readingsDefinitive answers to network issues

Main Product Benefits

Page 21: Troubleshooting Software Tools vs. Professional Test Equipment

Thank you