Visibility and Application Performance Management
There is no easy way to troubleshoot network problems when they occur but to solve them visibility is crucial, if you want to be able to solve the problem. To gain visibility we use management tools that harvest and collect data to see how things are going.
Long Term Packet Capture allows you to see what was happening leading up to a problem to see back in time to see what is really happening around the problem.
This short Video by Jim Frey from EMA explains the benefit retrospective analysis of Network Management