NetworkSimulator

A Python network infrastructure simulator focused on optical lightpath routing, latency/SNR optimization, and Monte Carlo traffic studies.

Features

• Optical line propagation with ASE and NLI noise modeling.
• Latency and SNR-weighted routing for traffic demands.
• Monte Carlo simulation loop with congestion analysis.
• Configurable traffic matrix generation and transceiver modes.
• Sample 9-node topology included (nodes_9.json).

Requirements

• Python 3.9+
• numpy, pandas, scipy, matplotlib

Install dependencies:

python -m pip install -r requirements.txt

Quick start

Run the default simulation:

python main.py

Customize topology and simulation parameters:

python main.py \
  --topology nodes_9.json \
  --channels 10 \
  --iterations 5 \
  --upgrade-line DB \
  --best snr \
  --transceiver shannon

Output

The script prints summary statistics and displays plots for:

• Line congestion
• SNR distributions

See docs/USAGE.md for deeper usage and topology guidance.

Project layout

• main.py: core simulation logic and CLI.
• nodes_9.json: sample topology.
• docs/: extended documentation.