Hi Jason .. maybe this is what you are looking for :
The WDS device performs several tasks on your wireless LAN:
Advertises its WDS capability and participates in electing the best WDS device for your wireless LAN. When you configure your wireless LAN for WDS, you set up one device as the main WDS candidate and one or more additional devices as backup WDS candidates. If the main WDS device goes off line, one of the backup WDS devices takes its place.
Here is a link that was posted earlier in this forum that helped us out.
http://www.cisco.com/en/US/products/hw/wireless/ps4570/products_configuration_guide_chapter09186a0080208a6e.html
HTH - Rob