Description

This project is a packet analyser for Named Data Networking (NDN) packets. It uses a MongoDB database to store the packets and provides various plotting scripts to visualise the data. The included plotting scripts are:

• components_hexbin.py - plots the distribution of number of components to its name length
• grid_throughput.py - plots the throughput graph of four nodes
• hoplimit.py - plots the hop limit of packets
• lifetime_freshness.py - plots cdf of lifetime and freshness of packets
• throughput.py - plots the throughput graph of a node with number of packets and size of packets in separate plots
• popular_prefixes.py - plots the most popular prefixes in interest and data packets
• content_size_distribution - plots the distribution of content size of NLSR traffic

Getting Started

Prerequisites

• Python >= 3.10
• MongoDB >= 6.0.6
• ndntdump

Installation

1. Create virtual environment and activate

cd ndn-packet-view
python3 -m venv venv
source venv/bin/activate

2. Install dependencies

pip install -r requirements.txt

3. Create .env

cp .env.sample .env

4. Create ndjson from pcapng.zst dump file
   • Find the local MAC address

   zstdcat <file_path_to_pcapng.zst> | tcpdump -r- -n -e | head -5

   • Extract into ndjson

   ndntdump -r <file_path_to_pcapng.zst> --local <local_mac_address> -L <path_to_output_file>

5. Edit .env file and change the MONGO_DB_NAME to the name of the database you want to use
6. Index ndjson file into MongoDB

python -m tools.index <file_path>

7. Run the plotting scripts

python -m tools.plots.<script_name>

Linters and Formatters

The project uses git pre-commit hooks to run linters and formatters. To enable the pre-commit hooks, run the following command:

pre-commit install

Troubleshooting

If the commit reports conflicts with the unstaged changes, run the pre-commit hooks manually and commit again:

pre-commit run --all-files

or use --no-verify flag to skip the pre-commit verification:

git commit --no-verify -m <message>