Transcript LanXPLORER vs. Laptop - TRIO Test & Measurement

Troubleshooting
Software Tools
vs.
Professional Test
Equipment
LanXPLORER vs. Software Tools
and the Winner is... ?
LanXPLORER vs. Laptop
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
let's start our testers!
A field tester takes
Several seconds to
Boot up
Loading...
READY
A PC takes several minutes
to boot up
A test device already has tested and displayed
• Connection Type
• Switchport Configuration
• PoE
• DHCP
+
+
While a PC is still booting
Activ
Network,
WiFi
PoE
(only
U&I)
+
Passive
Cabling
=
Bandwith,
Load
VoIP
LanXPLORER vs. Laptop
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
No physical connection Optical
Possible Causes
Wrong Port
Optical Interface
Very quick identification if link can
be established.
With the Hub Blink function the
LEDs of the switchports are
flashing
Errors of Fibers
Optical Interface
Mostly Rx and Tx are twisted. This
can easily be tried out.
Power Level is too high/low
Statistics
Attenuation
Statistics
The received an transmitted levels
are detected
Attenuation can be evaluated when
the fiber is looped at the far end
LanXPLORER vs. Laptop
No functional connection
Possible Causes
Wrong Port Settings CPE
(Customer Premises Equipment)
Inline Mode
Wrong Port Settings far End
(mostly on switches)
Statistics
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
No logical connection (Layer 3 / IP)
Possible Causes
No DHCP Adress Assignment
Statistics
Duplicated DHCP Server
Statistics
Wrong CPE Configuration
(User Equipment, PC, Phone,...)
PC-Diagnostics
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
Poor Network Performance
Possible Causes
Half Duplex due to wrong settings
Statistics
Easy scenario to see if the
Interface configurations are
matching (Inline)
Layer 2 Errors (Mac Layer)
due bad cables / fibers
Statistcs
Wrong CPE Configuration
PC-Diagnostics
Properties of the network adaptor.
CPE must be removed
LanXPLORER vs. Laptop
Bad VoIP Quality
Possible Causes
Packet Loss, Latency, Jitter
VoIP
Very good, as the LanXPLORER is
inline connected. It is observing
from both directions (network and
CPE)
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
LanXPLORER vs. Laptop
Functional Summary
Only limited funtionality with a
software, e.g. Wireshark. No Top Ten
functionality

ToneGen
TopTen
Wiremap
Ping

Traceroute

Hub Blink
PoE
PC-Diag
A Laptop can only replace a CPE, but
not look for its values
VoIP
requires software and can oly replace
a phone. A potential error cause is
therefore removed. Troubleshooting is
much more difficult.
Loop
WiFi Scan

Netmap:

Netverify

requires additional software
Statistics
requires additional software
Autotest

only some things can be done with
software. But o bandwith
mesurments, Layer 2 Errors, Partner
Configurations, ...
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)
LanXPLORER vs. Laptop
Monitoring by portmirroring
60% of the switches are unmanaged
(Source Siemens)
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
X X X X X X X X X X X X X X X X X X
Monitoring with a Laptop can be done here:
Monitoring with the LanXPLORER can be done here!
LanXPLORER vs. Laptop
Simultaneous monitoring in the same network.105 Packets have been monitored with:
LanXPLORER
Wireshark
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.
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
LanXPLORER vs. Laptop
Simultaneous monitoring in the same network.105 Packets have been monitored with:
LanXPLORER
Wireshark
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:
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:
Main Product Benefits
1.Time Saving
Find network issues fast and easy
2.Cost Saving
Reduce the network dowtime
Minimize the man-hours for
fault finding
3.Easy to use
This product does not even
require a manual
4.Clear readings
Definitive answers to network issues
Thank you