Today, packet processors can easily be overburdened by complex services requirements at high line rates. As customer requirements for improved line rate performance increase, network equipment developers are trying to manage multiple, complex functions with the main packet processor to address overall system demands. This white paper explores a new fourth-generation search solution that offloads the search function from the packet processor, enabling the system to layer value-added services and complex policy enforcement on top of state-of-the-art line rate performance.