Network

There’s really two areas; home and enterprise.

Home networking is what most of us think about. You have one network, eveyone gets an IP from it, and the router your ISP gave you handles things. You might mix it up with your own router, or create Internet Of Things networks, but mostly you don’t need to worry about routing.

Enterprise networking is where you have to think about buildings and routes and creating zones. That’s mostly what I focus on here. Back in the old days you could refer to the Cisco Campus WAN document. But that’s less useful these days and I’d have to point you to the Cisco Software-Defined Access (SD-Access) Solution Design Guide.

Or you can do what I’ve done; flatten everything and don’t let clients talk to each other. Supress all broadcasts except from the core down. Acomplishes much of what you need with 0 complexity.