RADIUS Client Integration in SMF
The SMF consists of loosely coupled micro-services. The micro-service decomposition is based on the following three-layered architecture:
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Layer 1: Protocol and Load Balancer services (stateless)
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Layer 2: Application services (stateless)
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Layer 3: Database services (stateful)
The RADIUS Client POD is integrated as part of the Protoco layer.
The following figure illustrates the integration of RADIUS Client in SMF.

Radius-EP App (RADIUS-Client POD) - The RADIUS Client functionality is added in a new POD. It handles RADIUS protocol-specific functions such as authentication and accounting.
Important | This release supports only RADIUS authentication. |
SMF Service App (SMF Service POD) - The SMF Service App provides PDU session service. During session establishment, the SMF service decides if the secondary authentication is required or not, and acts accordingly.
UDP-Proxy App (UDP-Proxy POD) - The UDP-Proxy App is enabled with host-networking and, sends and receives packets using external Virtual-IPs. All RADIUS packets are transmitted and received from an outside cluster using this application.