By Eric Kozlowski-Oracle on Sep 03, 2007
One of the unique and important pieces of network test equipment that we use is the Spirent Avalanche 2500.
From the FAQ:
What is Avalanche 2500?
Avalanche 2500 is an award-winning capacity assessment tool that challenges your networking infrastructure and applications to stand up to the load and complexity of real-world traffic. It delivers performance, realism, a wide range of protocols and ease of use in a single, easy-to-deploy appliance. Avalanche 2500 helps you determine the performance capabilities, bottlenecks and points of failure of a single device, a network or a complete end-to-end system.
Here's a good screenshot of the analyzer application that I got from this web site.
The Avalanche has been useful to us from a network stress testing perspective, especially to simulate FTP and HTTP scenarios. In conjunction with SmartBits, we're able to provide excellent network stress testing at the most critical portions of the networking stack, for relatively low engineering overhead.