Functions: A new chip technology to provide network quality of service (QoS) control, constantly adapt to new network applications, develop new network management models and quickly respond to market demand for new network functions. It also has a general and specialized integrated circuit chip ASICs (Application - specificIntegratedCircuits) from two aspects, the advantages of both high speed characteristics with ASICs line-speed forwarding message and also has a general programmable chip. Recently there has been a lot of active research in this area.