"The BSN Labs are a great way to try out Big Switch products, without having to buy gear or do any setup yourself. The lab guide walks you through some common scenarios, but you're free to do whatever you like within a sandboxed environment. Because the environment includes simulated endpoints, you're able to quickly test the effect of configuration changes. Actually configuring a system yourself really brings home the capabilities, and makes you start questioning the traditional methods of configuring networks."
Network Consultant, LKHill.com