The DSR Application Infrastructure (DAI) supports the following DSR Applications in the DSR:
- Full Address Based Resolution (FABR)
- Range Based Address Resolution (RBAR)
- Charging Proxy Application (CPA)
- Policy and Charging Application (PCA)
- Gateway Location Application (GLA)
- MAP - Interworking Function (MD-IWF)
The DSR Application Infrastructure is responsible for the following functions:
- Message routing to local DSR Applications based upon user-defined Application Routing Rules
- Interfacing with the Diameter Routing Function
- Processing Operational Status events from DSR Applications
- Routing Diameter messages received from Peer Nodes to DSR Applications
- Routing Diameter messages received from DSR Applications to Peer Nodes
- Application Chaining messages received from PCA to DSR Application
- Updating routing information based on connection and DSR Application status changes and on OAM configuration and state changes