The following concepts are central to Network Visibility:
Network Visibility can identify two types of performance bottlenecks: network-performance bottlenecks and app/network-interaction bottlenecks (i.e., issues in the way that an application tier or node uses network resources).
The Network Dashboard shows the network-level view of a monitored application. You can quickly identify network elements with performance issues (red/yellow links or tiers), view Key Performance Indicators for each network element, and troubleshoot individual elements (right-click on an element and choose View Metrics).
Network agents can detect load balancers and TCP endpoints, which appear in network flow maps (but not application flow maps) and sometimes act as traffic sources and destinations.