With the Cisco controller based wireless designs we could use the DHCP option 43 or the DNS method for AP discovery.
How do you decide which one to use? I'm after latest Cisco ducmentation which either specify one over the other as best practise or provide a compairson of the two discovery methods.
Here is the link that explains how to get option 43 configured.
Here is the link that explains how to get DNS option configured.
Now which one to use would be a designe call on what option works best for you.