An interesting part is that simulation and configuration setting up could be useful in production deployment environment as well withouth having all physical devices.:
You should register here:
https://www.netacad.com/
You might download packet tracer from below link and with several video and training on line:
https://www.netacad.com/courses/packet-tracer
Consider athat Packet Tracer is an exciting network design, simulation and modelling tool that allows you to develop your skill set in networking, cybersecurity, and the Internet of Things (IoT). It allows you to model complex systems without the need for dedicated equipment.
Here it is Cisco Acadamy link as well.
I hope to have time to publish more information and article related to this fantastic tool.
https://www.netacad.com/courses/all-courses
