In the WLC, you have an option called AP Groups. What this allows you to do is group the AP however you choose. i.e. By building, floor, etc.
Then you can tell each group to use a different interface on the WLC.
So you have one SSID
CampusEDU
Then in the Math department areas, you send the users to vlan 10
In the Sciences department areas, you send hte users to vlan 110
so on and so forth.
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a008073c723.shtml
HTH,
Steve
HTH,
Steve
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