Owners Manual

Best Practices: Performance Tuning Traffic Flow Analysis | Traffic Flow Analyzer
OMNM 6.5.2 User Guide 553
See Understanding Performance Monitoring on page 361 for more about calculating database
space and hardware and tuning monitored data.
Traffic Flow Limitations
• If you receive no endpoint flow data, the Traffic Flow Analysis form appears empty when you
select endpoints. Make sure you are receiving flow data before concluding the device or
OpenManage Network Manager is defective.
• The flows received are just samples, and consequently are only as accurate as the polling
interval and size of the flows sent. Fewer polling and smaller packets mean less accuracy. For
example If you only get 1 packet over the course of a file FTP it will not show the entire file
size.