F5 BIG-IP LTM Specialist: Maintain and Troubleshoot — Question 132

An LTM Specialist configures two LTM devices in a high-availability pair with trusts established and device groups configured properly using network failover. After several months, the LTM Specialist notices that changes made to one LTM device do NOT cause the synchronization status to update to "changes pending," and this device does NOT synchronize with the device group.
Which two steps should the LTM Specialist take to identify the issue? (Choose two.)

Answer options

• A. Verify that NTP is synchronized.
• B. Verify the network connectivity between the devices.
• C. Verify that the devices are not using self-signed certificates.
• D. Verify that ConfigSync is using the management IP address.
• E. Verify that port lockdown on the ConfigSync interface is set to allow port 1026.

Correct answer: A, B

Explanation

Verifying that NTP is synchronized (A) is crucial because time discrepancies can lead to synchronization issues between the devices. Additionally, checking the network connectivity between the devices (B) is essential to ensure that they can communicate effectively, as any network issues could prevent synchronization. The other options, while potentially relevant, do not directly address the synchronization problem at hand.