Description

Incorrect syslogging on a PTX1000 router can be caused by various factors, leading to misleading or inaccurate logging the system or protocol logs. This can make it challenging to diagnose and resolve network issues. Two common potential causes are NTP (Network Time Protocol) being out of sync and CPU-related issues.

Symptoms

02:36:29: RRO records received with valid path information

02:36:30: Link protection shows

02:36:29: Bandwidth Unavailability after establishment

Solution

Solution:

1. NTP Out of Sync:

  - Time discrepancies in the system clock.

  - Uptime mismatch across different parts of the system.

  - Log messages indicating NTP server unreachability or synchronization issues.


2. CPU Issues:

  - High CPU utilization causing performance degradation.

  - Unexpected reboots or crashes.

  - Error messages related to CPU faults or hardware issues.


Troubleshooting Steps:


1. Check NTP Status:

  - Run the command `show ntp status` to check the NTP synchronization status.

  - Look for any messages indicating NTP server unreachability or synchronization problems.


root@router> show ntp status


2. Check CPU Status:

  - Run the command `show chassis routing-engine` to check the status of the CPU.

  - Look for any error messages or indications of high CPU utilization.


root@router> show chassis routing-engine


3. Review Syslogs:

  - Examine the detailed syslogs for any specific error messages related to NTP or CPU issues.

  - Look for patterns or recurring issues that might help identify the root cause.


root@router> show log messages


4. Check for Configuration Errors:

  - Verify that the router's configuration settings, especially those related to MPLS and NTP, are correct.

  - Correct any misconfigurations that might be causing the issue.


5. Monitor System Performance:

  - Use monitoring tools to keep an eye on the router's performance metrics, such as CPU and memory utilization.

  - Identify any anomalies that could be affecting logging accuracy.


6. Inspect Hardware:

  - Physically inspect the router for any signs of hardware damage or failure.

  - Ensure all components are properly seated and connected.


7. Disk Health Check:

  - Verify the health of the disk storage used for logging.

  - Look for any signs of disk corruption or failure.


  root@router> show system storage


8. Environmental Factors:

  - Ensure the router is operating in a stable environment with consistent power supply and adequate cooling.


9. Contact Support:

  - If the issue persists after performing the above steps, contact the router manufacturer's technical support team for further assistance.


By following these troubleshooting steps, you should be able to identify and resolve the issue with incorrect syslogging on your PTX1000 router. If you need further assistance, feel free to reach out to technical support.

Modification History

2025-02-17 : Article Created