Application Notes

These Application Notes explain step-for-step how to use Xena’s Gigabit Ethernet traffic generator and analysis solutions for numerous tasks.

Need more help? Please contact your local Xena partner in the US, EMEA, or Asia Pacific.

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High Speed

Optical multi-speed splitting
An invaluable guide that describes how Xena 100GE and 40GE test modules support multiple port speeds depending on different transceivers and, in some cases, splitter cables.

Testing 100 Gbps Ethernet
Analyzes the challenges of testing 40 and 100 Gbps Ethernet. As with any new technology, the key to success is testing, and 40/100G Ethernet presents new issues to the development cycle.


Benchmarking and Service Validation

Central Office Testing
Examines the characteristics of an Ethernet tester in the central office environment.

Stress Testing Switches and Routers
A step-by-step illustration of how to perform a simple stress test on a Layer-2 switch device.

How to Do Basic Performance Testing on a Firewall
Describes step-by-step how to test three critical performance parameters for a firewall: TCP CC, TCP CPS, and throughput against different packet sizes.

TCP Throughput Testing Based on RFC 6349
This Application Note describes how to make RFC 6349 based TCP throughput tests with the Xena Networks layer 4-7 test solution VulcanBay controlled by VulcanManager.

Testing Minimum Inter Frame Gap (IFG)
Explains how to stress test the minimum IFG spacing.

VSPerf RFC 2544 Throughput
How to benchmark and characterize virtual switch throughput performance for telco Network Functionality Virtualization (NFV) use cases - under the project VSPerf - using Valkyrie2544.

Wholesale Ethernet Service Testing
The Xena testers enable wholesale Ethernet service providers to cost-efficiently perform service activation for enterprise customers by providing a highly scalable gigabit Ethernet test platform ideal for installation in network edge central office locations.



Evaluating Ethernet Ring Protection Switching (ERPS) Performance
Outlines scenarios for verifying the performance of Ethernet Ring Protection Switching (ERPS) in Mobile backhaul networks.

Measuring Network Convergence
Illustrates how testing your network’s re-convergence time with industry leading measurement precision simplifies measuring the operations of resiliency mechanisms.



DDOS Testing with ValkyrieManager
A step-by-step guide to simulating a Distributed Denial of Service (DDoS) attack using ValkyrieManager.



Demonstrating and testing synchronous Ethernet (SyncE) networks
Outlines how Xena’s Advanced Timing test modules can be used to demonstrate network synchronization, and to perform go/no-go testing of SyncE networks.

Evaluating 1588v2 performance
Describes a test plan for evaluating the performance of 1588v2 Boundary clocks (BCs) and 1588v2 Transparent clocks (TCs) based on solutions from Calnex and Xena Networks.

Time Synchronization
Describes how to synchronize the clocks of multiple Xena test chassis.


Hints and Guidance

Measuring Frame Delay Variation
Describes how FDV is measured accurately and in real time with Xena Networks testers.

Testing at 100% load with line rate speed compensation
Illustrates how to compensate for small differences in line rates between the Xena tester and the DUT/NUT.

Gauges - Meters
A step-by-step guide to presenting Xena test results in gauges/meters, using Graphite and Grafana installed on a virtual Linux machine.

Freely Programmable Test Packets
This Application Note explains the Custom Data Field and Extended Payload features available in some of Xena high-speed test modules can be used to verify the behaviour of DUTs in multiple traffic scenarios.

Sequence Error Detection
Xena testers detect anomalies in the sequence of packets received after they have traversed the network, and report these anomalies to the user. This Application Note explains how this detection process works and how the results are displayed.

Scheduling Modes
The Xena Traffic Generator supports four ways (scheduling modes) of merging the streams into the test traffic that is sent from one physical port. This application note explains the four scheduling modes.

PCAP Replay
How to capture traffic into PCAP files and replay on Xena’s Vulcan traffic generation & analysis platform to reproduce your own reality for stateful performance verification.

DHCP IP Assignment
Don’t want to add a DHCP Server to a test environment? Here is some simple scripting that lets you use a Valkyrie traffic generator to function as a basic DHCP server.

Note: To use this scripting, you need to download 2 text files in this zip folder.


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