VeriWave adds open-air testing
-- Test & Measurement World, 9/17/2007 6:25:00 AM
VeriWave has announced the integration of its WiMix performance prediction tool for wireless Quality of Experience (QoE) with an open-air test methodology. The new open-air test methodology makes use of numerous portable VeriWave WT20 traffic generator/analyzer units deployed in a real-world environment to accurately load a wireless infrastructure network with traffic from thousands of users. The test subjects the network to realistic conditions and reports end-user QoE for a wide variety of vertical deployments, such as healthcare, corporate offices, education facilities, and retail outlets.
Trapeze Networks (www.trapezenetworks.com), one of the launch customers for VeriWave’s WiMix test suite, is utilizing the open-air test methodology to replicate various vertical market environments and ensure industry-leading performance and scalability of its Smart Mobile wireless technology. Prior to deploying this methodology, Trapeze used dozens of laptops to attempt to create large-scale testing in its open-air labs. According to John Ye, technical engineer with Trapeze Networks, this approach became impractical.
“Trying to keep dozens of PCs in identical working state and dealing with the unpredictability of the operating system’s TCP/IP stack as a test tool was a daunting task. We needed a test setup that will allow us to conduct predictable and repeatable tests of corporate grade networks consisting of hundreds of Trapeze Smart Mobile access points,” said Ye. “Using VeriWave’s open-air test methodology combined with WiMix, we are achieving the desired goal of loading this network with thousands of individual users and reliably verifying performance—including advanced Smart Mobile capabilities, such as fast roaming and local switching to support latency-sensitive voice and video applications—under a wide range of operating conditions. With this added level of accuracy, we have accelerated our test procedures, increased test coverage, and substantially lowered our overall cost of verification. It has helped us confirm that Trapeze’s Smart Mobile provides the industry’s most robust and scalable WLAN solution.”
The open-air test methodology combined with WiMix offers the ability to evaluate a realistic network environment in a wide range of conditions, including complex traffic mixes encountered in various vertical industries, various types of security mechanisms, and combinations of data, voice, and video traffic.
With prepackaged traffic mixes that represent typical healthcare, education, office-building, hot-spot, government, and law-enforcement environments, VeriWave’s WiMix leverages the capabilities of VeriWave’s WaveTest platform to allow users to create, configure, and control variables impacting end-user experience and performance, including e-mail traffic, web browsing, CRM applications, audio and video file transfers, video sessions, voice calls, scanners, and RFID asset management and tracking devices. The WiMix test suite allows the user to set predetermined Service Level Agreements for each traffic type. At test completion, WiMix reports the ability of the network to adhere to these Service Level Agreements for each of the traffic types.
“To be thorough, leading providers of wireless infrastructure technology have been running concurrent lab and open-air tests,” said Eran Karoly, VP of marketing at VeriWave. “They use VeriWave systems in their labs to create complex traffic conditions and test functionality, scalability, quality of service, mobility, and overall performance. But when its time to prototype their networks in live environments typical of the end-user environment, the traditional approach of using dozens of laptops becomes time consuming, inaccurate, and frustrating. With this new test methodology, VeriWave bridges the gap between the two test environments, offering a comprehensive, repeatable, and automated test solution.”
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