This object specifies whether check for non-DFS channel should be done on DCA channel list or not. Generally at least one non-DFS channel should be present in DCA channel list. But there are locations like EU(European Union) where there is no non-DFS channel available for outdoor deployment. Customers deploying outdoor APs in EU or regions with similar regulations should set this variable to 'true'. A value of 'true' indicates that controller will not perform check for non-DFS channels in DCA list. A value of 'false' indicates that controller will perform checkf for non-DFS channels in DCA list.