IXIA 400T,4 slot chassis including integrated PC controller, IxOS operating system, IxExplorer client application, and IxAutomate RFC 2544 and 2889 suites. The IXIA 400T chassis provides a platform on which an Ixia test system can be built. The chassis supports an integrated test controller that manages all chassis and testing resources. A wide array of interface Load Modules are available for the chassis, providing the network interfaces and distributed processing resources for customizing and analyzing network traffic flows. The highly scalable architecture supports daisy chaining of up to 256 chassis with synchronized timing to enable very large test environments.