How do I resolve NFA showing Degraded or Stopped services, if related to SNMP ?

Products

• Network Observability
• Network Flow Analysis

Issue/Introduction

If you're encountering a problem with one of your server not responding correctly, it may be worth verifying if your Harvester and Console (Reporter) are using the correct SNMP profile in both the NetOps portal as well as your Windows Enviroment.

 

Cause

One common cause of this issue might be incorrect SNMP Security Settings such as SNMP Version, profiles details, community string and security IPs should be checked.

Resolution

You can start by verifying the SNMP Service Properties are correctly set in Windows.  Open Windows Services

1.  Click on  Start > Run > type Services.msc to open.

Then check for the  "SNMP Service", right click and select Properties, then click on the Security Tab, which should appear as the following:

 

- Verify you SNMP Profile is using the correct community string for your origination.  In the above example, the test machine is using a community string called 'nfatest'
- Next, ensure your IP settings are added.  Please include:  

localhost
127.0.0.1
and
<IP of the console server itself> 

- Then OK out of the settings saving the changes.

2.  Please also verify the Harvester for the same settings, check the SNMP Profile is correct, and it will also require the localhost, 127.0.0.1 and the Console IP as well.

3.  In NetOps portal, you'll want to verify the SNMP settings as well. 

Log into NetOps Portal  > Administration > Data Sources > NFA > Watchdog settings on the left side:

 

Check for the correct community string and SNMP version and any profile settings you use to ensure they're set correctly.

4.  Once this has been completed, you can restart the watchdog service ("NetQoS Reporter/Analyzer Watchdog) on the Console.

5.  Verify the status of NFA in the portal

 

 

Additional Information

If you continue to encounter errors after waiting a few minutes for the services to restart, it may be worth opening a support ticket and reviewing the watchdog log file.

The logs are found in the installation folder \CA\NFA\REPORTER\Logs\watchdoglog*