Positioning of DPI in NGN Architecture

Application traffic perception (DPI) plays an important role in the future NGN network architecture. With the demand and technical maturity, application Awareness technology will gradually integrate user management, security control, and fine-grained business control capabilities to achieve dynamic perception, policy control, and QoS Assurance for various businesses, as well as network and business security protection and other functions, to reduce the network operator's capital expenditure and operational expenditure, to provide a basic operation platform for the network operator's telecommunications business, it has broad application prospects and market prospects.

The policy control function of DPI is indispensable in IMS and tispan of NGN architecture. DPI is located at the network layer of the architecture and provides comprehensive information for business control and network control.

 

Application traffic perception (DPI) in future NGN network architecture

Strictly speaking, DPI is a technology, not a device category. In addition to the appearance of DPI devices, DPI functions will be integrated in Bras (Broadband Access Server) in the future) in system functions such as Er (edge router), firewall, IPS, IDs, ggsn, and pcef, the DPI functions implemented in each system are also very different, after all, the DPI function consumes a lot of system resources. The higher the DPI function, the greater the impact on the original system performance.