Develop a proficiency in Docker, Open vSwitch, SDN, and Openflow. Learn all about Docker, which provides a complete file system including everything needed to run an application. Understand the Docker architecture including the infrastructure, host operating system, docker engine, and hypervisor. Master Open vSwitch and how it works with virtual machines. Open vSwitch (OVS) is an open-source distributed virtual multilayer switch providing a switching stack for virtualization environments. Install GNS3 (Graphical Network Simulator 3), which will help you build, design, and test your virtual environment. Also set up OpenFlow, which is a communications protocol that gives access to the forwarding plane of a network switch or router over the network.