sdn-project

Network Topology Project with Python Ryu and Mininet

Requirements

[Only if you are using windows] Set up WSL2 with Ubuntu 22.04 LTS: Follow the official Microsoft documentation to install WSL2 and set up Ubuntu 22.04 LTS. Install WSL2
Install Mininet: Open your WSL2 terminal or Ubuntu terminal and run the following commands:
```
sudo apt update
sudo apt install mininet openvswitch-switch -y
```
Test it (remember: Mininet only works as root):
```
sudo mn --test pingall
```
Install Python 3.8.x: Open your WSL2 terminal or Ubuntu terminal and run the following commands:
```
sudo apt update
sudo apt install python3.8 python3.8-venv python3.8-dev -y
```
Maybe you'll have to run this before:
```
 sudo add-apt-repository ppa:deadsnakes/ppa -y
```
Clone this repository, enter the folder where it is located at and set up a virtual environment:
```
git clone <repo>
cd sdn-project
python3.8 -m venv .venv
source .venv/bin/activate
```
Only the Ryu controller and not Mininet will use the venv.
Inside the virtual environment, install the Requirements:
```
pip install -r requirements.txt
```

Run the Ryu Controller: Open a terminal where the folder sdn-project is located, activate the venv and run the controller
```
source .venv/bin/activate
ryu-manager ./controller/sdn_controller.py
```
Run Mininet with your Topology: You have to run the Ryu controller in a terminal with the venv activated, and Mininet in another one, outside the venv. So open a new terminal and run:
```
sudo python3 ./topology/geant_topology.py
```
Plot the Graphs: After stopping Mininet and the Ryu controller, you can plot the graphs by running:
```
source .venv/bin/activate
python3 ./plot_graphs.py
```

Ensure that you have administrative privileges to run Mininet.
If you encounter any issues, refer to the official documentation of Mininet and Ryu for troubleshooting tips.
If the eventlet error on ryu occurs, try uninstalling and reinstalling a specific version:
```
pip uninstall eventlet
pip install eventlet==0.30.1
```