NetFlow Optimizer (NFO) software keeps track of its activity by logging to various files in
$NFO_HOME/logs (NFO_HOME default is
/opt/flowintegrator). You can also see its health on the Status page. This page shows input / output statistics, length of various queues, and drop counts.
The NFO internal log files are rolled based on size. Ten last files are kept in
$NFO_HOME/logs/bak directory. You can change the default log rotation size and the number of “bak” files to keep by editing
You can download logs from NFO by going to Tracing and Configuration on the left navigation bar, and clicking on Download logs button.