Which technology provides the benefit of Layer 3 through Layer 7 innovative deep packet inspection,enabling...

 Cisco NBAR2 is a classification engine that recognizes and classifies a wide variety of protocols and applications based on their deep packet inspection (DPI) signatures. NBAR2 enables the platform to identify and output various applications within the network traffic flows, such as web, email, voice, video, and so on. NBAR2 also supports custom protocols and applications, allowing the platform to classify traffic based on user-defined criteria. NBAR2 helps the platform to apply the appropriate quality of service (QoS), security, and policy for each application or protocol. References :=

Some possible references are:

Cisco NBAR2

Classifying Network Traffic Using NBAR

Next Generation NBAR (NBAR2)