Xena Networks WhitePapers Download

Central Office Testing of Network Services 

This application note examines the characteristics of an Ethernet tester in the central office environment. 

Stress Testing Switches and Routers

This application note describes how to use a Xena tester to perform a simple stress test on a Layer-2 device’s data plane and forwarding capability. You can build many different packet protocols, vary packet sizes, traffic profile, offered loads, and other test parameters, and then view real-time measurements to observe the effect on your router or switch. Because the Xena test platform can generate and measure Layer-2 or Layer-3 traffic with equal facility, you can easily adapt this test for a router forwarding IP traffic.

Testing Minimum Inter Frame Gap (IFG)

The Xena testers can verify traffic forwarding performance, protocol scalability and services delivering capabilities of switching and routing devices across the enterprise, metro/edge and core. The test engineer can use the Xena tester to examine the robustness and behavior of the Device-Under- Test (DUT) / Network under Test (NUT) when loaded with traffic patterns violating the IEEE defined minimum spacing between Ethernet packets. This application note uses an example test setup with a HP Procurve 2900 24G switch to illustrate how to stress test the minimum IFG spacing.

Testing at 100% load with line rate speed compensation

The Xena testers can verify traffic forwarding performance, protocol scalability and services delivering capabilities of switching and routing devices across the enterprise, metro/edge and core. Prior to stress testing the forwarding capability, special consideration must be applied to eliminate potential packet loss caused by small differences in line rates between the Xena test ports and the network ports of the Device-Under-Test (DUT). This application note uses an example test setup with a HP Procurve 2900 24G switch to illustrate how to compensate for small differences in line rates between the Xena tester and the DUT.