Network Router Simulator

A modular Streamlit application for creating and visualizing network topologies with real-time packet routing simulation.

Features

• Router Management: Add/remove routers dynamically (2-50 routers)
• Link Configuration: Create connections with customizable latency, bandwidth, congestion, and packet loss
• Real-time Animation: Live packet routing visualization using Dijkstra's algorithm
• Vector Graphics: Professional router representations with antennas and LED indicators
• Random Networks: Generate random topologies with configurable parameters
• Packet Analytics: Track routing decisions, TTL, hops, and delivery times

Installation

pip install -r requirements.txt

Usage

Linux/Mac:

chmod +x run.sh
./run.sh

Windows:

run.bat

Manual:

streamlit run main.py

File Structure

• main.py - Main application entry point
• network_core.py - Network simulation and routing logic
• visualization.py - Vector graphics and packet animation
• video_generator.py - FFmpeg video operations (optional)
• ui_components.py - Streamlit interface components

Controls

1. Quick Setup: Generate random networks (2-50 routers)
2. Add/Remove Routers: Create network nodes manually
3. Configure Links: Adjust latency, congestion, packet loss, and status
4. Send Packets: Simulate routing between any two routers
5. Live Animation: Watch packets move along calculated paths

Network Indicators

• Green Routers: Current packet path
• Blue Routers: Active routers
• Gray Edges: Normal links
• Orange Edges: Congested links (>50%)
• Red Dashed Edges: Failed links
• Red Vector Packet: Moving data with trail effect

Requirements

• Python 3.8+
• Streamlit
• NetworkX
• Matplotlib
• Pandas
• NumPy
• Pillow (PIL)

Optional

• FFmpeg (for video export - not required for core functionality)