System and method of caching DNS responses for application detection

Abstract

The present invention relates to a system (125) and method (500) for caching DNS responses in a User Plane Function (UPF) (210) to enhance application detection. The method includes the step of establishing a connection with User Equipments (UEs) (110) and DNS units (220). The method includes the step of receiving at least one domain access request from the plurality of UEs (110). The method further includes the step of determining a destination Internet Protocol (IP) address of the at least one data packet by raising a first set of DNS queries to the plurality of DNS units (220). The method further includes the step of caching one or more responses received from the plurality of DNS units (220) in a DNS cache unit (230). By doing so, the system (125) and method (500) optimizes network traffic processing, improves performance, and enhances the user experience in application detection.

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