+-------------------+ +-----------+ +--------------------+ |Aggregation Switch/| | | | Aggregation Switch/| | Router +------+ DUT/SUT +------+ Router | | | | | | | +----------+--------+ +-----------+ +--------+-----------+ | | | | +-----------+-----------+ +-----------+-----------+ | | | | | +-------------------+ | | +-------------------+ | | | Emulated Router(s)| | | | Emulated Router(s)| | | | (Optional) | | | | (Optional) | | | +-------------------+ | | +-------------------+ | | +-------------------+ | | +-------------------+ | | | Clients | | | | Servers | | | +-------------------+ | | +-------------------+ | | | | | | Test Equipment | | Test Equipment | +-----------------------+ +-----------------------+