We are preparing our disaster recovery site to be able to fail over from our production site.  In order to do this, we need to be able to set up equivelant VLANs in the core DR switch that will host the same IP subnets currently served by our production site.  If I assign it an IP address, I would like to be able to shut it down so that it doesn't conflict with the production site.  Anybody have  a clue on how to do this?

Thanks in advance!
antsman