F5 BIG-IP LTM Specialist: Maintain and Troubleshoot — Question 46

An active/standby pair of LTM devices deployed with network failover are working as desired. After external personnel perform maintenance on the network, the
LTM devices are active/active rather than active/standby. No changes were made on the LTM devices during the network maintenance.
Which two actions would help determine the cause of the malfunction? (Choose two.)

Answer options

• A. checking that the configurations are synchronized
• B. checking the configuration of the VLAN used for failover
• C. checking the configuration of the VLAN used for mirroring
• D. checking the open ports in firewalls between the LTM devices
• E. checking synchronization of system clocks among the network devices

Correct answer: B, D

Explanation

Checking the configuration of the VLAN used for failover (Option B) is crucial because any misconfiguration could lead to the devices operating in an active/active mode instead of the intended active/standby mode. Additionally, verifying open ports in firewalls between the LTM devices (Option D) is important, as firewalls may block failover communication, impacting the expected behavior. The other options do not directly address the failover functionality or the active/active issue.