AppCritical™ is a third party tool that provides active-mode monitoring of your network activity. AppCritical "virtualizes" the network to create a view that is meaningful to applications. The tool looks end-to-end from the application's perspective and produces simple, bottom line information regarding the network. Even non-network specialists can use this information to identify, assess, and diagnose issues when replication fails to complete. AppCritical requires no prior knowledge of the network, no agents, and only a few hours of training for typical general support staff with minimal skills.