Final design

Now that all the layers and main features have been explained and depicted in detail, the following figure summarizes the overall fabric solution recommended by Fortinet for wired and wireless access on multiple floors and in multiple buildings.

If you have fewer than 48 sets of access layers, which can distributed per floor or distant building, depending on the type of campus, you deploy a set of tier-2 MCLAG switches in the aggregation layer. If you have more than 48 sets of access layers, then you just deploy a new set of two tier-2 MCLAG switches in the aggregation layer and keep the rest of the design exactly the same in the core and access layers, up to six sets, which represents at maximum of 2,300 access FortiSwitch units or around 110,000 GbE switch ports in the campus. You would probably have to segment the network differently with many more core building blocks, even if you have fewer than the maximum number of switch ports, because you would have to account for other physical elements and WAN access pipe sizing to accommodate the amount of traffic that would be generated.

For more details on deploying a large-campus switching network, refer to the Large Campus Switching Deployment Guide. You can also contact Fortinet accredited partners and distributors or Fortinet Professional Services to help you further in designing your network following these guidelines.