I use Cisco routers and Cisco Nexus. I also use Juniper and OLTP. These are the common machines that I am using, including Cisco switches.
From JL, it's a PC-based server. I installed MicroTik OS. As I mentioned before, my company is an Internet Service Provider. I provide Internet to end users from the server, using the MicroTik operating system installed on servers to distribute broadband Internet.
Additionally, I use PC-based servers. It's essentially a clone computer. I collect a processor, like an Intel processor or a motherboard from another company. This customized PC is made into a server, which I use to provide broadband Internet to my end users, in homes or offices, utilizing FTTH technology.
I use Juniper as my core router, followed by PowerEdge as a secondary router, and then switches and ONT, which stands for Optical Line Terminal. These are used to provide broadband Internet to my end customers through separate layers. Fiber optic lines connect to different buildings and offices, where I install a router device called OLEU to provide Internet to customers.
This process is very good, with a processor that has 32 cores, which is sufficient to meet my qualifications and needs. It's quite a good server, and I've been using it for the last three years. I also use different types of dynamic solutions for network design like AutoCAD and SolarWind.