I was having a discussion with my manger the other day, who is more experienced with networking than I am. We were discussing the setup of a new network for a site. I suggested we use a different VLAN tag each floor for isolation purposes. He said that VLAN tagging each floor would add unnecessary overhead to the switches and would cause network degradation. I disagree, I don’t think it would cause degradation, at least nothing noticeable. My idea was a VLAN for Phones, Computers, Wi-Fi and Printers for each floor.
I was wondering what is the ratio of adding VLANs and routing to a switch that would cause degradation. I know this is dependent on the hardware. I think most modern hardware is capable of this. (We have new Meraki stuff for this network)
What are reddit’s thoughts? Is a VLAN for each floor (~100 devices) a good idea to keep broadcasts and any potential attacks a bit more isolated, or will that add too much overhead to the switches and cause slowness?
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