A traffic driven power control algorithm for parallel Deep Packet Inspection

The tremendous success of the Internet has made it a huge infrastructure that is connected with an enormous number of network devices to deliver information. With an equivalent increase of power consumption, the heat dissipation demands of Internet core routers are reaching the limits of cooling capability. As a balance of power and performance, this paper presents a traffic driven power control algorithm through the use of dynamic frequency scaling and a sleep mode for parallel Deep Packet Inspection (DPI) in Network Intrusion Detection System (NIDS). The simulation results show that it enables the network processing unit with the capability of adapting its frequency for both performance and energy efficiency. Besides, this paper presents the initial result on power aware parallel DPI system, while the follow-up work and its hardware implementation are the future work.