sequenceDiagram
    participant Config as Profile Configuration
    participant Collector as SNMP Collector
    participant Client as SNMP Client (gosnmp)
    participant Device as SNMP Device (Agent)

    Note over Collector,Device: Collection Cycle Started

    Collector->>Config: Load IF-MIB Metric Definitions
    Config-->>Collector: Return OIDs (64-bit HC counters only)

    Note over Collector: CHANGED: Batching logic now uses MaxOIDs=20 (down from 60)

    loop Every 20 OIDs
        Collector->>Client: Send GetRequest (Batch)
        Client->>Device: SNMP GET (PDU)
        
        alt Device supports requested OIDs
            Device-->>Client: Response (Success)
            Client-->>Collector: Return Variable Bindings
        else Device OID not found / Timeout
            Device-->>Client: Response (Error Status)
            Client-->>Collector: Return Error/Partial Data
        end
    end

    Note over Collector: Metric Processing (Virtual Metrics)

    alt NEW: Device has 64-bit counters (ifXTable)
        Collector->>Collector: Calculate ifTraffic (in/out)
        Collector->>Collector: Calculate ifPacketsUcast (in/out)
    else CHANGED: Device only has 32-bit counters (ifTable)
        Note over Collector: 32-bit fallback REMOVED for Traffic/Unicast
        Collector->>Collector: Skip Traffic/Unicast metrics (prevent overflow)
    end

    Collector->>Collector: Process 32-bit Errors/Discards (Still Supported)
    
    Note over Collector,Device: Collection Cycle Finished