Trishul SNMP v1.2.4: Self-Hosted Toolkit Adds Real-Time WebSocket Push

I Built a Free, Self-Hosted SNMP Toolkit — Now With Real-Time WebSocket Push

Developer Sumit Dhaka has released Trishul SNMP v1.2.4, a comprehensive self-hosted toolkit designed to replace fragmented legacy networking utilities. The system now utilizes a persistent WebSocket connection at /api/ws to broadcast state changes instantly to the browser UI.

Why This Matters

Technical reality often forces engineers to juggle expensive $500 MIB browsers and manual CLI configurations for snmptrapd that haven’t evolved since the early 2000s. By containerizing a Python 3.11 backend with FastAPI and pysnmp, Trishul SNMP eliminates the ‘dependency hell’ of manual MIB management and the latency of 30-second polling intervals found in traditional web-based network monitors.

Key Insights

• Real-time event-driven architecture via /api/ws replaces periodic polling to ensure zero-refresh UI updates for trap counters and simulator status (2026).
• Trishul SNMP consolidates an SNMP Simulator, Trap Receiver, and MIB Browser into a single stack using Python 3.11, FastAPI, and Docker.
• Session data and activity counters are file-backed to app_settings.json, ensuring stats survive container restarts for consistent session history.
• The MIB Manager automates parsing and validation of OID structures, replacing manual text editor lookups with an interactive tree view.
• Integrated ‘full_state’ messaging automatically re-seeds the frontend upon WebSocket reconnection to prevent data staleness after network hiccups.

Working Examples

One-command installation script for Trishul SNMP

curl -fsSL https://raw.githubusercontent.com/tosumitdhaka/trishul-snmp/main/install-trishul-snmp.sh | bash

Architectural flow of the real-time WebSocket push system

Browser ←──── WS push ────── FastAPI /api/ws
│
broadcasts on:
- trap received
- simulator start/stop
- MIB uploaded
- stats change

Practical Applications

• NMS developers use the virtual UDP 1061 agent to test polling logic without physical hardware. Pitfall: Deploying as a 24/7 production monitor instead of a testing tool leads to scalability issues compared to enterprise systems like Zabbix.
• Integration engineers fire specific trap OIDs via the web UI to validate handler code in real-time. Pitfall: Keeping default admin/admin123 credentials in a shared staging environment exposes the toolkit to unauthorized configuration changes.

References:

• https://dev.to/tosumitdhaka/i-built-a-free-self-hosted-snmp-toolkit-now-with-real-time-websocket-push-3782
• https://raw.githubusercontent.com/tosumitdhaka/trishul-snmp/main/install-trishul-snmp.sh