NetVizura license is perpetual. Different modules (NetFlow, EventLog, MIB etc.) are activated with a license key which is bound to NetVizura server via Installation key. Different modules have different license models.
The following sections provide instruction for licensing NetVizura:
NetFlow Analyzer license depends on the number of flows you are exporting to NetVizura server, regardless of the number of exporters (routers and switches) and their interfaces involved. You can collect data from as many devices as you need and the total number of flows will reflect your network traffic volume.
With this approach you have a possibility for a wider usage of NetFlow software across your network and choose the license that best fits your network traffic volume.
EventLog Analyzer license has no limitations on number of exporters or syslog and SNMP traps received.