This is my typical use case for the Tags: All APs have the Tag "Prod-AP". All 802.1X SSIDs are configured to only get broadcasted on APs that have the Tag "Prod-AP". What is the benefit? When I need to exchange an AP, the replacement AP will start with an IP that is not yet known to the RADIUS server. If a client would already connect to this AP, the connection would fail. But without the Tag, the SSID is not announced yet, and I have time to set the DHCP reservation for the new AP. After the AP gets its "correct" IP, I set the Tag, and the SSID gets broadcasted.
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