Device/Interface Name not populating in Traffic (NFA) Module for SNMP V3 - OpManager v12

Issue:

Device/Interface Name not getting populated for N/w Devices monitored using SNMP V3 protocol OpManager v12.

Analysis:

When the device takes longer time to respond for the SNMP V3 requests, then the device name will not get populated in the Flow Analysis page under Inventory tab.

Resolution:

Please follow the below mentioned steps.

Stop the OpManager service.
Open Command Prompt with Run as Administrator.
Navigate to ManageEngine\OpManager\conf directory.
Edit the "system_properties" using Word Pad.
After the last line add the below entry.

routSNMPTimeOut=RouterIP1-TIMEOUT_IN_MILLIS,ROUTERIP2-TIMEOUT_IN_MILLIS

Eg: routSNMPTimeOut=192.168.0.1-30000,192.168.0.2-30000,192.168.0.3-30000
Rename the logs and start the OpManager service.
Go to the device snapshot page > Edit the device, set SNMP, select the SNMP credential>Test SNMP and click on OK to save the SNMP credential.
Click on Edit Device Details > Select Fetch SNMP from the router> Save.