To enable VMware NSX-T IPFIX in vRealize Network Insight:
Ensure that you have any one of the following privileges:
Ensure that the Distributed (DFW) firewall is enabled.
Ensure that priority 0 is available for the Network Insight IPFIX profile. If there is another IPFIX profile with priority 0, then you have to change it to some other value.
What to do next
After you enable IPFIX, vRealize Network Insight creates its own Network Insight Collector profile and Network Insight IPFIX profile on NSX-T. Ensure that you do not modify any of these profiles.
After enabling IPFIX on NSX-T, if the flows are not seen in vRealize Network Insight, then the following events may occur:
Network Insight Collector Profile is not registered in the NSX-T Manager.
Network Insight IPFIX Profile is not registered in the NSX-T Manager.
Network Insight IPFIX Profile port number has changed.
Network Insight Collector Profile does not match in the Network Insight IPFIX profile in the NSX-T Manager.Note:
To resolve all the above issues, enable NSX-T IPFIX again.
Network Insight IPFIX Profile priority is not zero in the NSX-T Manager.
To resolve this issue, log into NSX-T Manager and set the priority of Network Insight IPFIX Profile to zero.
Network Insight Collector IP cannot be added in existing Network Insight Collector Profile in the NSX-T Manager.
Delete one of the collectors from the Network Insight Collector Profile in the NSX-T Manager and re-enable NSX-T IPFIX from data source page.
Distributed Firewall is disabled in NSX-T Manager.
Log into NSX-T Manager and enable the DFW firewall.
All the logical switches present in NSX-T are appended in the IPFIX profile within 10-15 minutes.