{{indexmenu_n>4}}
====== Integration interfaces ======

<mermaid>
flowchart LR
    CORE["VAS Experts<br/>ePDG Monitoring"]

    CORE --> P["Prometheus<br/>CNCF / OpenMetrics"]
    CORE --> S["SNMP v2c<br/>EPDG-MIB"]
    CORE --> G["Grafana<br/>JSON Provisioning"]
    CORE --> W["Webhooks<br/>ChatOps"]
    CORE --> AM["Alertmanager<br/>Routing"]

    P --> P1["Cloud-native NMS<br/>Thanos / Cortex / Mimir"]
    S --> S1["Legacy NMS<br/>HP OpenView, NetAct<br/>IBM Tivoli"]
    G --> G1["NOC Wall Displays<br/>Drill-down Analytics"]
    W --> W1["Telegram / Slack<br/>PagerDuty / OpsGenie"]
    AM --> AM1["Smart routing<br/>Severity-based"]
</mermaid>

===== 1. Prometheus (CNCF Standard) =====

The native ''/metrics'' endpoint on port **9817** is built into fast-epdg. The format is standard text format Prometheus v0.0.4 (compatible with OpenMetrics). Aggregation is supported with the central Prometheus operator; remote_write team support for long-term storage in Thanos, Cortex, Grafana Mimir.

===== 2. SNMP v2c — EPDG-MIB =====

**47 OID** covers the Prometheus metric + **14 trap notifications** (with raise/clear pairs according to RFC 3877 ALARM-MIB). Compatible with HP OpenView, IBM Tivoli NetCool, Nokia NetAct, Huawei U2000.

<mermaid>
flowchart TB
    IANA["IANA PEN<br/>enterprises<br/>.1.3.6.1.4.1"]
    VAS["VAS Experts<br/>.1.3.6.1.4.1.43823<br/>(vas.expert)"]
    EPDG["EPDG-MIB<br/>.43823.1"]
    EPC["EPC Monitoring<br/>.43823.100"]

    IANA --> VAS
    VAS --> EPDG
    VAS --> EPC

    EPDG --> OBJ["epdgObjects<br/>.43823.1.1"]
    EPDG --> NOTIF["epdgNotifications<br/>.43823.1.2<br/>14 trap types"]
    EPDG --> CONF["epdgConformance<br/>.43823.1.3"]

    OBJ --> SERVICE["service .1.1.1<br/>4 OID"]
    OBJ --> IKE["ikev2 .1.1.2<br/>6 OID"]
    OBJ --> GTP["gtp .1.1.3<br/>8 OID"]
    OBJ --> DIAM["diameter .1.1.4<br/>7 OID"]
    OBJ --> SESS["sessions .1.1.5<br/>8 OID"]
    OBJ --> SYS["system .1.1.6<br/>8 OID"]
    OBJ --> NET["network .1.1.7<br/>6 OID"]

    NOTIF --> TRAPAGR["7 raise / 7 clear<br/>pairs"]
</mermaid>

Examples of SNMP requests:

<code bash>
# The entire ePDG tree
snmpwalk -v2c -c public <host>.1.3.6.1.4.1.43823.1

# Service availability (Gauge 0..1)
snmpget -v2c -c public <host> .1.3.6.1.4.1.43823.1.1.0
</code>


===== 3. Grafana =====

**4 JSON dashboard support** (35+ panels total):
  * **ePDG Overview** — availability, KPI connections, sessions, state of interfaces
  * **IKEv2 Details** — Messages, Performance, Errors, IKE SA Lifecycle
  * **GTP Details** — GTPv2-C + GTP-U data on PGW nodes
  * **Diameter Details** — Application messages, delays, watchdog

Automatic installation through an API that supports Grafana. Adaptive design for Network Control Center (NOC) status monitors with auto-update every 15 seconds.

===== 4. Alertmanager Webhooks =====

Webhook interface for integration with any notification system: Telegram Bot, Slack, PagerDuty Events API v2, OpsGenie, Microsoft Teams. A separate **SNMP Trap Sender** service converts Alertmanager webhooks to SNMP v2c traps with Enterprise OID.