Explain the call flow between DRA and PCRF.

Question

Accepted Answer

DRA-PCRF call flow involves Diameter messages between Diameter Routing Agent and Policy and Charging Rules Function.

Diameter messages are exchanged between DRA and PCRF for policy and charging control in a network.
DRA acts as a proxy between the PCRF and other network elements, routing Diameter messages.
PCRF provides policy control decision-making for subscriber sessions based on network policies.
Example: DRA receives a request from a network element, forwards it to PCRF for policy decision, PCRF responds with the policy decision to DRA, and DRA forwards it back to the requesting network element.

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