Network Telemetry & Real-Time Monitoring: Implementing WebSockets & SNMP Protocol Pipelines

Ingesting Low-Level Protocol Telemetry

Network engineers frequently need sub-second visibility into link saturation, CRC error counters, and packet loss events across distributed switches and routers.

// Real-Time WebSocket Telemetry Dispatcher
import { WebSocketServer } from "ws";
import snmp from "net-snmp";

export function initTelemetryEngine(server: any) {
  const wss = new WebSocketServer({ server });
  
  wss.on("connection", (ws) => {
    const session = snmp.createSession("192.168.1.1", "public");
    const oids = ["1.3.6.1.2.1.2.2.1.10.1", "1.3.6.1.2.1.2.2.1.16.1"]; // ifInOctets, ifOutOctets
    
    const interval = setInterval(() => {
      session.get(oids, (error, varbinds) => {
        if (!error) {
          const telemetry = {
            inOctets: varbinds[0].value,
            outOctets: varbinds[1].value,
            timestamp: Date.now(),
          };
          ws.send(JSON.stringify(telemetry));
        }
      });
    }, 1000);
    
    ws.on("close", () => clearInterval(interval));
  });
}

Transforming Raw Packets into Actionable Insights

By piping SNMP polling data through a WebSocket gateway into a reactive Next.js frontend, network operations centers (NOC) gain instant awareness of anomalies before users experience degradation.