If you are using a Layer 2 switch you can assign a new VLAN to the wireless access points and dedicate the ports for the specific access point WLAN MAC address for security.
When you assign the Access Points to the SAME VLAN you can reduce broadcasts and increase bandwidth along with adding some filter security as well (Depending on the switch capabilities).
I recommend purchasing good Cisco switches, create specific VLAN for WLAN and add filtering for security. Extra hardware will accomplish the same thing but is will cost more and not be as versatile.
Each Access Point will need a non-overlap channel, Same SSID and same VLAN. You may want to look at Cisco SWAN as well.
Hope this is helpful.
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