sure, basically we have production servers in a pool that take all traffic normally, we also have some 'hot standby' servers/site that are normally down that will kick in if there is a major failure of all members of the production pool. The services in the standby cluster have some backend components that need to be brought online before traffic flows and the apps are up. The trigger for bringing them online is the failure of all members of the production environment, so I was thinking the F5 would trigger the event to fire a script on the standby cluster to bring the backend systems into play when all members are down in production, after which time the monitors on the standby cluster would come up and traffic would flow to the standby cluster.