How to Build DPI Products? (Part II - System Design)

 

After we saw the recommendations for CPU design - let’s go one step up in the food chain - to the system design. Radisys published a new white paper on DPI and how to implement it using the ATCA (Advanced Telecommunications Computing Architecture).

See "DPI: Deep Packet Inspection Motivations, Technology, and Approaches for Improving Broadband Service Provider ROI" - here and the document - here.

"Depending on the DPI application, an appropriate mix of CPUand/or packet processor blades may be used. DPI application providers may have substantial investment in existing code that is not easily ported to a packet processor or simply may not require absolute real time and packet forwarding capabilities needed for the DPI application, such as when the application is required to be in the path. The application may also be compute or storage/memory intensive. Packet processing capabilities in CPU-based systems are also improving and benefit from overall advances in CPU design (see charts below)"

Among the DPI vedors using ATCA are Allot (here), Procera (here) and NSN (here) as well as Alcatel-Lucent for its PCRF product (here). See also "DPI Market: GENBAND OEMs Procera"- here for the possible OEM benefits of ATCA.