TotalView's Dynamic Network Map shows a live look into utilization and availability in your environment.
Links and devices are checked every 5 seconds for status and usage so you'll have a very up-to-date picture of what's happening on your network.
If a link changes status or a device becomes unreachable, an alarm will sound so you know something happened. A glance at the map tells you exactly what occurred so you will never get caught having a user know about an outage before you do.
This is perfect for a NOC monitoring screen.