The active LTM device in a high-availability (HA) pair performs a failover at the same time the network team reports an outage of a switch on the network. Which two items could have caused the failover event? (Choose two.)
A.
a VLAN fail-safe setting
B.
a monitor on a pool in an HA group
C.
the standby LTM that was rebooted
D.
an Auditor role that has access to the GUI
E.
the standby LTM that lost connectivity on the failover VLAN
AB - Correct
-System fail-safe:
The system fail-safe feature enables the BIG-IP system to monitor system components, such as the heartbeat signal of various system daemons.
-Gateway fail-safe:
The gateway fail-safe feature enables the BIG-IP system to monitor traffic between an active BIG-IP system in a device group and a pool containing a gateway router.
-VLAN fail-safe:
The VLAN fail-safe feature enables the BIG-IP system to monitor network traffic going through a specified Virtual Local Area Network (VLAN).
-HA group:
The HA group feature enables the BIG-IP system to monitor the availability of resources for a specific traffic group
-HA ordered list and auto-failback:
You can configure a traffic group to use a static, ordered list of devices
https://my.f5.com/manage/s/article/K95002127
Please check https://support.f5.com/csp/article/K95002127 - K95002127: Troubleshooting BIG-IP failover events
It should be due to gateway & vlan fail-safe
Everything you wrote is wrong... If a unit looses connectivity to the peer it stays in its previous status - otherways you would get split brain, when both devices don't see and reach each other
upvoted 2 times
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