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====== Integration into a single EPC Monitoring stack ======

ePDG monitoring is fully integrated into overall packet core monitoring:

<mermaid>
flowchart TB
    subgraph Common["Unified Monitoring Stack"]
        PROM["Prometheus"]
        GRAF["Grafana"]
        AM["Alertmanager"]
    end

    subgraph Sources["Sources of EPC metrics"]
        DPI["FastDPI<br/>:9110"]
        SMF["SMF /metrics<br/>:9090"]
        PCEF["fast-pcef /metrics<br/>:9090"]
        PCRF["FastPCRF"]
        EPDG["fast-epdg<br/>:9817"]
    end

    DPI --> PROM
    SMF --> PROM
    PCEF --> PROM
    PCRF --> PROM
    EPDG --> PROM

    PROM --> GRAF
    PROM --> AM
</mermaid>

The NOC operator sees **all EPC components** (DPI, SMF, PCEF, FastPCRF, ePDG) in a single Grafana interface, with a single alarm system and notification routing through one Alertmanager.