Isolating & resolving bandwidth hogs
A leading educational institution has every teaching staff due for an online certification exam in another 2 hours time. Each staff is connected to the Internet over laptops provided by the institution. For the past 30 minutes a huge, unexplained bandwidth spike is keeping the network administrators on tenterhooks. Any slight congestion on the bandwidth would create problems during the online exam. Here's how the NetFlow Plug-in on OpManager helped.
Further investigation showed that a virus affected application downloaded by the user was flooding the entire network over UDP port. After removing the application, the switch port connecting the user is enabled again.
Outcome: The online certification exam passed off without problems. The NetFlow Plug-in helped identify bandwidth-hogging user and application and together with OpManager's Switch Port Mapper and switch management functionality, the root cause was isolated, resolved and bandwidth normalcy restored.