The Spirent TestCenter 10GbE test modules provide functional, performance, system and conformance testing capabilities from Layer 2 through Layer 7 on a single GUI and test automation platform. These test modules generate realistic traffic from Layer 2 through Layer 7 of the OSI network layers and analyze data frame, packet, stream and protocol metrics for each layer. The test modules can also simultaneously manage data plane tests with control plane traffic required for metropolitan, enterprise and broadband access routing. They provide the most realistic and accurate network device performance measurements in the industry. Features such as real-time capture and decode along with the real-time event logging system allow the user to find the source of more complex multi-protocol problems.