The below network diagram can be created using EdrawMax as it has free network symbols and templates that let you customize the diagram as per your need. If one has more than four wired network devices, like computers, game consoles, smart tv, etc., they will have to add a network switch to the network layout. In the below diagram, a switch has been added below the router. It should be noted here that Network switches come in different sizes. They start with 4-network ports up to 48 ports. At the same time, using a switch isn't only necessary when one wants to connect more than four network devices and when one doesn't want to pull all the cables to the router.
