JDS Uniphase T-BERD User manual

T-BERD ⁄MTS 5800
Handheld Network Test Family
Ethernet, Fibre Channel, IP, and TCP/UDP Testing Manual

Network and Service Enablement
One Milestone Center Court
Germantown, Maryland 20876-7100 USA
Toll Free 1-855-ASK-JDSU • Tel [phone] • Fax [phone]
www.jdsu.com
T-BERD ⁄MTS 5800
Handheld Network Test Family
Ethernet, Fibre Channel, IP, and TCP/UDP Testing Manual

ii Ethernet, IP, and TCP/UDP Testing Manual
Notice Every effort was made to ensure that the information in this manual was accu-
rate at the time of printing. However, information is subject to change without
notice, and JDS Uniphase reserves the right to provide an addendum to this
manual with information not available at the time that this manual was created.
Copyright © Copyright 2013 JDS Uniphase Corporation. All rights reserved. JDSU, Net-
work and Service Enablement, and the JDSU logo are trademarks of
JDS Uniphase Corporation (“JDS Uniphase”). All other trademarks and regis-
tered trademarks are the property of their respective owners. No part of this
guide may be reproduced or transmitted electronically or otherwise without
written permission of the publisher.
Copyright release Reproduction and distribution of this guide is authorized for Government pur-
poses only.
Trademarks JDS Uniphase, JDSU, MTS 5800, and T-BERD 5800 are trademarks or regis-
tered trademarks of JDS Uniphase in the United States and/or other countries.
Cisco is a registered trademark of Cisco and/or its affiliates in the U.S. and cer-
tain other countries.
NetFlow is a trademark of Cisco Systems, Inc. in the United States and certain
other countries.
Wireshark is a registered trademark of the Wireshark Foundation.
All trademarks and registered trademarks are the property of their respective
companies.
Terms and conditions Specifications, terms, and conditions are subject to change without notice. The
provision of hardware, services, and/or software are subject to JDSU’s stan-
dard terms and conditions, available at www.jdsu.com/terms.
FCC Notice This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference when
the equipment is operated in a commercial environment. This equipment gen-
erates, uses, and can radiate radio frequency energy and, if not installed and
used in accordance with the instruction manual, may cause harmful interfer-
ence to radio communications. Operation of this equipment in a residential
area is likely to cause harmful interference in which case the user will be
required to correct the interference at their own expense.
Ordering information The catalog number for a printed getting started manual is C5GSG. The cata-
log number for a printed Ethernet testing manual is C5ETHERNET. The cata-
log number for electronic manuals on USB is C5USB.
WEEE and Battery Directive
Compliance
JDSU has established processes in compliance with the Waste Electrical and
Electronic Equipment (WEEE) Directive, 2002/96/EC, and the Battery Direc-
tive, 2006/66/EC.
This product, and the batteries used to power the product, should not be dis-
posed of as unsorted municipal waste and should be collected separately and
disposed of according to your national regulations. In the European Union, all

Ethernet, IP, and TCP/UDP Testing Manual iii
equipment and batteries purchased from JDSU after 2005-08-13 can be
returned for disposal at the end of its useful life. JDSU will ensure that all waste
equipment and batteries returned are reused, recycled, or disposed of in an
environmentally friendly manner, and in compliance with all applicable national
and international waste legislation.
It is the responsibility of the equipment owner to return equipment and batteries
to JDSU for appropriate disposal. If the equipment or battery was imported by
a reseller whose name or logo is marked on the equipment or battery, then the
owner should return the equipment or battery directly to the reseller.
Instructions for returning waste equipment and batteries to JDSU can be found
in the Environmental section of JDSU’s web site at www.jdsu.com. If you have
questions concerning disposal of your equipment or batteries, contact JDSU’s
WEEE Program Management team at [email protected].

iv Ethernet, IP, and TCP/UDP Testing Manual

Ethernet, Fibre Channel, IP, and TCP/UDP Testing Manual v
Contents
About this Manual xv
Purpose and scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
Assumptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvi
Ethernet, IP, and TCP/UDP Testing Manual. . . . . . . . . . . . . . . . . . . . . . xvii
Conventions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xvii
Safety and compliance information. . . . . . . . . . . . . . . . . . . . . . . . . . . . xviii
Technical assistance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . xix
Chapter 1 Basic Testing 1
Step 1: Selecting a test application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2: Configuring a test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 3: Connecting the instrument to the circuit . . . . . . . . . . . . . . . . . . . 3
Step 4: Starting the test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Step 5: Viewing test results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Setting the result group and category . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Additional test result information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Running multiple tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chapter 2 3.072G Optical Testing 7
About 3.072G Optical testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
BER Testing 3.072G Optical Layer 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Monitoring 3.072G Optical Layer 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Chapter 3 CPRI/OBSAI Testing 11
About CPRI/OBSAI testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Layer 1 BER CPRI or OBSAI Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Layer 2 CPRI testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Inserting alarms. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Layer 2 OBSAI testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Inserting errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Monitoring CPRI or OBSAI layer 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Contents
vi Ethernet, Fibre Channel, IP, and TCP/UDP Testing Manual
Chapter 4 Ethernet and IP Testing 21
About Ethernet and IP testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Features and capabilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Understanding the graphical user interface . . . . . . . . . . . . . . . . . . . . . . 24
Frame settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Packet settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Ethernet and IP test applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
MiM test applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
MPLS-TP test applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
PTP/1588 test applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Configuring 10 Gigabit Ethernet WAN tests. . . . . . . . . . . . . . . . . . . . . . 26
Configuring Ethernet VPLS tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
VPLS tunnels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Virtual channels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
VPLS test applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Configuring MPLS over Ethernet tests . . . . . . . . . . . . . . . . . . . . . . . . . 28
MPLS test applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Configuring IPv4 and IPv6 tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Cable Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Running cable diagnostics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Viewing cable measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Adjusting the frequency of transmitted optical signals. . . . . . . . . . . . . 31
Enabling automatic traffic transmission . . . . . . . . . . . . . . . . . . . . . . . . . 32
Prerequisites for traffic transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Issues to consider . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Enabling the feature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Discovering another JDSU test instrument using J-Connect . . . . . . . . 33
Discoverable instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Prerequisites . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Discovering an instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
About the Refresh key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Sorting discovered instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Application names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Observing details for an instrument . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Protocol Analysis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Layer 1 BER testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
BER testing layer 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Monitoring layer 1 BER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Layer 2 testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Specifying interface settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Specifying Ethernet frame settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Things to consider . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Specifying the settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Configuring VLAN tagged traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Configuring Q-in-Q traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Configuring stacked VLAN traffic . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Configuring VPLS traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Configuring MPLS traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Configuring LBM Traffic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Specifying Ethernet filter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Filtering traffic using Q-in-Q criteria. . . . . . . . . . . . . . . . . . . . . . . . . 52
Filtering traffic using stacked VLAN criteria. . . . . . . . . . . . . . . . . . . 53
Filtering traffic using VPLS criteria . . . . . . . . . . . . . . . . . . . . . . . . . 54
Filtering traffic using MPLS criteria . . . . . . . . . . . . . . . . . . . . . . . . . 55
Filtering traffic using byte pattern criteria . . . . . . . . . . . . . . . . . . . . 56
Filtering traffic using payload criteria. . . . . . . . . . . . . . . . . . . . . . . . 57

Contents
Ethernet, Fibre Channel, IP, and TCP/UDP Testing Manual vii
Specifying traffic load settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Transmitting a constant load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Transmitting a bursty load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Transmitting a ramped load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Transmitting and analyzing layer 2 traffic . . . . . . . . . . . . . . . . . . . . . . . 62
Transmitting and analyzing layer 2 patterns . . . . . . . . . . . . . . . . . . . . . 63
Monitoring layer 2 traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Transmitting and analyzing layer 2 MPLS-TP, T-MPLS or MPLS traffic 64
About MPLS-TP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Analyzing MPLS-TP OAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Transmitting and analyzing MPLS-TP traffic. . . . . . . . . . . . . . . . . . 68
Using J-Proof to verify layer 2 transparency . . . . . . . . . . . . . . . . . . . . . 69
Understanding transparent loopbacks . . . . . . . . . . . . . . . . . . . . . . 69
Configuring the traffic originating instrument . . . . . . . . . . . . . . . . . 70
Using Quick Config to configure test frames . . . . . . . . . . . . . . . . . 71
Verifying the far end filter settings. . . . . . . . . . . . . . . . . . . . . . . . . . 72
Initiating the transparent loopback . . . . . . . . . . . . . . . . . . . . . . . . . 72
Starting the frame sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Observing transparency results . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Layer 3 testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Specifying L3 interface settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74
Specifying the data mode and link initialization settings . . . . . . . . . . . . 74
Specifying PPPoE settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
PPPoE messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Terminating a PPPoE session . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Specifying transmitted IPv4 packet settings . . . . . . . . . . . . . . . . . . . . . 77
Specifying IPv4 filter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Specifying transmitted IPv6 packet settings . . . . . . . . . . . . . . . . . . . . . 80
Specifying IPv6 filter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Transmitting and analyzing IP traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Ping testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Specifying IP settings for Ping and Traceroute testing . . . . . . . . . . 83
Transmitting ping request packets . . . . . . . . . . . . . . . . . . . . . . . . . 85
Running Traceroute. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Monitoring IP traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
Capturing packets for analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
What is captured? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Test traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Control plane traffic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
How much can be stored in the buffer?. . . . . . . . . . . . . . . . . . . . . . . . . 88
Why use packet slicing? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Understanding the Capture toolbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Specifying filter settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Capturing packets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Manually capturing packets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Capturing packets based on a trigger. . . . . . . . . . . . . . . . . . . . . . . 91
Saving or exporting captured packets . . . . . . . . . . . . . . . . . . . . . . . . . . 94
How long will it take to save the PCAP file? . . . . . . . . . . . . . . . . . . . . . 96
Analyzing the packets using Wireshark® . . . . . . . . . . . . . . . . . . . . . . . 96
Analyzing the packets using J-Mentor. . . . . . . . . . . . . . . . . . . . . . . . . . 97
Loopback testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Inserting errors or pause frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Inserting alarms or defects. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Measuring round trip delay or packet jitter. . . . . . . . . . . . . . . . . . . . . . 101
Measuring one way delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
CDMA/GPS receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
ATP-GPS test packets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Network diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102

Contents
viii Ethernet, Fibre Channel, IP, and TCP/UDP Testing Manual
Things to consider . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
About the One Way Delay test option and accessory kit. . . . . . . . . . . 104
CDMA Receiver Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
GPS Receiver Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Step 1: Connecting the receivers to your instruments . . . . . . . . . . . . . 104
Connecting the CDMA Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Connecting the GPS receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Step 2: Measuring one way delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Measuring service disruption time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
OAM service and link layer testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Service layer features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Link layer features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Specifying OAM settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Turning AIS or RDI analysis ON . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Sending LBM or LTM messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
MAC-in-MAC testing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Understanding MAC-in-MAC test results. . . . . . . . . . . . . . . . . . . . . . . 115
Understanding the MAC-in-MAC LEDs . . . . . . . . . . . . . . . . . . . . . . . . 115
Configuring layer 2 MAC-in-MAC tests . . . . . . . . . . . . . . . . . . . . . . . . 115
Specifying interface settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Specifying Ethernet frame settings . . . . . . . . . . . . . . . . . . . . . . . . 115
Specifying Ethernet filter settings for MiM traffic . . . . . . . . . . . . . . 118
Specifying OAM settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Specifying traffic load settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Transmitting layer 2 MiM traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
Inserting errors or pause frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Measuring round trip delay and packet jitter . . . . . . . . . . . . . . . . . . . . 121
Measuring service disruption time . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Monitoring layer 2 MiM traffic. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121
Synchronous Ethernet testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122
Transmitting and analyzing PTP/1588 traffic. . . . . . . . . . . . . . . . . . . . . 122
About PTP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Analyzing PTP traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Discovering traffic using J-Profiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125
Chapter 5 TCP/UDP Testing 127
About TCP/UDP testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Features and capabilities. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Understanding the graphical user interface . . . . . . . . . . . . . . . . . . . . . 128
TCP/UDP test applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Understanding the ATP Listen IP and Port . . . . . . . . . . . . . . . . . . . . . 130
Specifying layer 2 and layer 3 settings . . . . . . . . . . . . . . . . . . . . . . . . . 131
Specifying layer 4 settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Well known ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
Specifying TCP/UDP settings for transmitted traffic . . . . . . . . . . . . . . 132
Configuring the traffic load. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Specifying the frame or packet length for transmitted traffic . . . . . . . . 134
Filtering received traffic using layer 2 or layer 3 criteria. . . . . . . . . . . . 134
Filtering received traffic using layer 4 criteria. . . . . . . . . . . . . . . . . . . . 134
Transmitting layer 4 traffic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136
Inserting errors or pause frames . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Loop back testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Running TCP Host applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Changing settings during the test . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Streams pipe: multiple TCP streams . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Understanding the LED panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138
Understanding TCP Host test results. . . . . . . . . . . . . . . . . . . . . . . . . . 138