Containernet CLOS Topology Generator

Project Description

This project aims to leverage Containernet, a fork of the renowned Mininet network emulator, to facilitate the creation of SDN network topologies using Docker containers as hosts. By harnessing the capabilities of Containernet, developers can explore a wide range of networking and cloud emulation scenarios while benefitting from the flexibility and scalability of Docker containers.

The script is used to create a Campus LAN topology with docker hosts.

Usage

Step 1: Setup Containernet

Refer to this guide here, to do a bare-metal installation in Ubuntu-20.04 LTS

Step 2: Bring up ONOS (SDN Controller)

This project uses ONOS version 2.7.0 LTS.

Step 3: Configure the script

1. Find this line in the script and replace the controller-IP
   net.addController('c0', switch=OVSKernelSwitch, controller=RemoteController, ip='controller-IP', port=6653)

2. Build a Ubuntu Docker Image
   Refer to my other repository here, to create a custom Ubuntu image with a real-life traffic generator
   Note: The name of the image must be ubuntu:latest

Step 4: Run the script

Required Arguments:

 -a --access 	        Number of Access Layer Switches 

 -d --distribution    Number of Distribution Layer Switches

 -bwa --bandwidthaccess 	       Access Layer Bandwidth 

 -bwd --bandwidthdistribution    Distribution Layer Bandwidth

 -ho --host              Number of Docker Hosts  

Optional Arguments:

-c --core 	          Number of Core Layer Switches

-bwc --bandwidthcore 	         Core Layer Bandwidth

Example:
sudo python3 docker_topology.py -a 4 -bwa 10 -d 2 -bwd 20 -c 2 -bwc 30 -ho 4

License

This project is licensed under Mininet 2.3.1b1 License