Users Guide

OMNM 6.5.3 User Guide 527
10
Traffic Flow Analyzer
This section provides information about the Traffic Flow Analyzer (TFA) component, which allows
you to view and report on detailed traffic flow data within your network. TFA listens on UDP ports
for packets in the NetFlow and sFlow family of protocols (this includes NetFlow implementations
such as JFlow, NetStream, etc).
Using this data, Traffic Flow Analyzer can help you visualize network traffic, troubleshoot and
anticipate bottlenecks.
Supported versions include sFlow v5, and NetFlow v5 and v9, and IPFIX (which is essentially
NetFlow v10) but not previous versions (for example, v2).
Typical packages come with a default limit to the number of registered exporters. Upgrade your
license if you want to exceed the licensed limit. Traffic Flow exporters are licensed separately from
the Right to Manage (RTM) resource license count, so a license that includes 50 RTM does not
necessarily let you have 50 Traffic flow exporters.
OpenManage Network Manager typically limits the number of exporters available for your system
through licensing. Review your Traffic Flow Analyzer license setting in the license viewer under
Product Licenses tab, the license detail section (MaxExporterCount=n, where “n” is the number
of exporters licensed.) After reviewing recommendations for performance tuning and hardware
sizing in this document, you can request a license allowing more exporters from your sales
representative.
This section covers these topics:
How does Traffic Flow work? – 528
Setup Tasks – 530
Showing Traffic – 533
Traffic Flow Portlet – 535
Traffic Flow Analyzer - Example – 545
Traffic Flow Analysis Life Cycle – 548
Best Practices: Performance Tuning Traffic Flow Analysis – 551