DRA

Diameter routing agent

A functional element that ensures that all Diameter sessions established over reference points, such as the Gx, for a specific IP-CAN session, reach the same PCRF when there are multiple and separately addressable PCRFs that are deployed in a Diameter realm. The DRA tracks the status of PCRFs that are assigned to specific UEs and IP-CAN sessions across reference points, such as the Gx.