Step 1: Accessing PRTG Interface

1. Open your web browser and navigate to the PRTG Network Monitor web interface.
2. Log in using your credentials to access the dashboard.

Step 2: Adding SNMP Device Interface Sensor

1. Navigate to the "Devices" or "Groups" section where you want to add the sensor.
2. Click on the "Add Sensor" button.
3. Search for the "SNMP Traffic" sensor type and select it.
4. Choose the target device for which you want to track interface obstacles.
5. Configure sensor settings such as SNMP version, community string, and scanning interval.

Step 3: Configuring SNMP Device Interface Sensor

1. Once the sensor is added, click on it to access its settings.
2. Under the "Settings" tab, configure parameters specific to tracking interface obstacles.
3. Enable monitoring for the desired interfaces.
4. Set up threshold values for detecting obstacles, such as bandwidth usage, errors, discards, etc.
5. Customize notification methods (email, SMS, etc.) and severity levels for alerts.
6. Save the settings to apply the changes.

Step 4: Reviewing Monitoring Results

1. After configuring the sensor, PRTG will commence tracking SNMP device interface obstacles.
2. Access the sensor overview to view real-time data and status updates.
3. Monitor obstacles triggered by interface conditions exceeding configured thresholds.
4. Utilize built-in reporting and graphing features to visualize obstacle trends over time.
5. Review obstacle history and actions taken for resolution.

Step 5: Troubleshooting and Maintenance

1. In case of any issues or discrepancies, review sensor logs and error messages for troubleshooting.
2. Ensure that SNMP is enabled and properly configured on the target device.
3. Verify that the device's SNMP settings and credentials are accurate in PRTG.
4. Check network connectivity between the PRTG server and the target device.
5. Regularly review and adjust obstacle settings based on changing network conditions and requirements.
6. Keep PRTG Network Monitor updated to the latest version to benefit from enhancements and bug fixes.

Tracking SNMP device interface obstacles with PRTG Network Monitor is indispensable for maintaining network reliability and performance. By adhering to this manual, users can proficiently configure and utilize SNMP Traffic sensors to track interface obstacles, enabling proactive identification and resolution of potential challenges. This proactive approach aids in minimizing network downtime and ensuring optimal performance across the network infrastructure.