Note: Core switches should be installed in a central location that meets cable distance requirements for the media used between core and access switches. Centralized servers are typically grouped into a server farm located in the Enterprise Campus or in a separate data center. Servers Directly. Shouldn't I place the switch on the ceiling downstairs so I'll be able to have WIFI downstairs, in my basement, and on the other side upstairs as well? Have you looked at something like eero? Not sure if it's available where you are, but this is much simpler than having to mount switches and run. Core Layer: The core layer is the backbone of the hierarchy network. The primary transmission and routing of data signals take place at the core layer only. When I mean servers, I'm mostly talking about servers used internally (DHCP, RADIUS, RDS, DNS, SNMP, NETFLOW). Engineered to aggregate massive volumes of data from distribution switches, it provides ultra-low latency and maximum throughput to ensure uninterrupted routing and packet.