SNMPv3 Service Failure on NSX Manager or Edge Node

Products

• VMware NSX
• VMware NSX-T Data Center

Issue/Introduction

• The NSX SNMPv3 configuration follows the official documentation.
• NSX logs do not indicate any errors.
• Checking the status of the service reveals that it is stopped. 
  NSX-Mgr-##> get service snmp
Tue Apr 01 2025 UTC 07:41:45.386
Service name:      snmp
Service state:     stopped
Start on boot:     True


• SNMP Managers (ServiceNow, Nagios, SolarWinds, etc...) are unable to discover the NSX Managers or Edges.
• SNMP walk failures from SNMP Manager to Agents (NSX Managers, Edges)
• /etc/init.d/vmware-snmpd start command completes without error, however the service does not come up
  
  

  root@NSX-Mgr-##:/var/log# /etc/init.d/vmware-snmpd start
[ ok ] Starting vmware-snmpd (via systemctl): vmware-snmpd.service.

  root@NSX-Mgr-##:/var/log# /etc/init.d/vmware-snmpd status
* vmware-snmpd.service - LSB: VMware SNMP agent
   Loaded: loaded (/etc/init.d/vmware-snmpd; generated)
   Active: active (exited) since Mon 2021-02-15 18:53:53 UTC; 4 years 1 months ago
  
  

• The uptime on the NSX manager nodes may be more than 1500 days

Environment

VMware NSX-T Data Center
VMware NSX 

Cause

This issue may result from a lack of regular maintenance being performed on NSX Managers and Edge nodes. 

Resolution

To resolve this issue:

1. 1. Reboot the NSX manager or Edge node
   2. Check the status of the SNMP service by running command:
      • If logged in as Admin user: 
        >get service snmp
      • If logged in as root user:
#/etc/init.d/vmware-snmpd status 

If the issue persists after the reboot, collect the NSX support bundles and open a support request with Broadcom by following Creating and managing Broadcom support cases.

Additional Information

It is recommended to regularly upgrade the NSX to the latest version to benefit from new features, security patches, and improved stability, as VMware regularly releases updates.