Datadog Agent Agent not collecting SNMP metrics

What is Datadog Agent Agent not collecting SNMP metrics

Understanding Datadog Agent

Datadog Agent is a lightweight software that collects metrics and events from your systems and applications. It is designed to run on your servers, containers, and cloud infrastructure, providing real-time visibility into your operations. One of its capabilities includes collecting SNMP metrics from network devices.

Identifying the Symptom

When the Datadog Agent is not collecting SNMP metrics, you may notice missing data in your dashboards or alerts related to SNMP devices. This can impact your ability to monitor network performance effectively.

Common Error Messages

While there may not be a specific error message, logs might indicate that SNMP metrics are not being collected or that the agent cannot reach the SNMP device.

Exploring the Issue

The primary reason for this issue is that SNMP metrics collection is not enabled, or the agent lacks the necessary access to the SNMP device. SNMP (Simple Network Management Protocol) is used for collecting and organizing information about managed devices on IP networks.

Configuration Check

Ensure that the SNMP integration is configured correctly in the Datadog Agent. This involves setting up the snmp.d/conf.yaml file with the correct device IP, community string, and other parameters.

Steps to Fix the Issue

Follow these steps to resolve the issue of Datadog Agent not collecting SNMP metrics:

Step 1: Enable SNMP Integration

Ensure that the SNMP integration is enabled in your Datadog account. You can verify this by checking the integrations page in the Datadog dashboard.

Step 2: Configure SNMP in the Agent

Open the snmp.d/conf.yaml file located in the Datadog Agent's configuration directory. Add the SNMP device details, including the IP address and community string. For example:

instances: - ip_address: 192.168.1.1 community_string: public version: 2c

Save the changes and restart the Datadog Agent using the command: sudo systemctl restart datadog-agent

Step 3: Verify Network Access

Ensure that the Datadog Agent has network access to the SNMP device. You can test connectivity using the ping command or snmpwalk tool:

snmpwalk -v 2c -c public 192.168.1.1

If the command returns SNMP data, the network access is correctly configured.

Step 4: Check Agent Logs

Review the Datadog Agent logs for any errors related to SNMP collection. Logs are typically located in /var/log/datadog/. Look for entries that might indicate issues with SNMP connectivity or configuration.

Additional Resources

For more information on configuring SNMP with Datadog, refer to the official Datadog SNMP Integration Documentation. For troubleshooting network issues, the Datadog Network Troubleshooting Guide can be helpful.