While using Network Flow Analysis, you may encounter issues with SNMP polling devices. Previously with NFA, if you could not SNMP a device you would eventually see your device get it self into a state of RebootRefresh as NFA did require SNMP connectivity for netflow devices to work properly. Starting with NFA 21.2.2, we can add specific devices to an exclusion list in the database on the harvester server.
In older NFA versions, you could only turn on "IgnoreReboots" globally, and that would affect all routers. This allows you to exclude specific devices and still allow NFA to poll other devices.
Certain devices such as VMware hosts or other devices where you just may not have SNMP connectivity may need exemptions from the SNMP connectivity requirement due to software limitations or network restrictions.
Release : 21.2.2+
Component : Network Flow Analysis
These steps will only work on NFA 21.2.2 and Up. Please upgrade to at least that version first.
*If multiple devices having the issue then add it separated by "," e.g '10.100.243.4,127.0.0.1,10.1.1.1'
4. Once the above steps are completed, please restart the CA MySQL Service on the NFA harvester for the settings to apply.