201 · Question #277
Which process or system can be monitored by the BIG-IP system and used as a failover trigger in a redundant pair configuration?
The correct answer is D. VLAN communication ability. In a BIG-IP redundant pair, the ability of a VLAN to communicate is a critical network health check that can trigger a failover if communication is lost.
Question
Which process or system can be monitored by the BIG-IP system and used as a failover trigger in a redundant pair configuration?
Options
- Abandwidth utilization
- Bduplicate IP address
- CCPU utilization percentage
- DVLAN communication ability
How the community answered
(36 responses)- A6% (2)
- B3% (1)
- C3% (1)
- D89% (32)
Why each option
In a BIG-IP redundant pair, the ability of a VLAN to communicate is a critical network health check that can trigger a failover if communication is lost.
Bandwidth utilization is typically monitored for performance analysis or traffic shaping, not as a direct, default failover trigger in redundant BIG-IP configurations.
A duplicate IP address is a network configuration problem, but it is not a standard, configurable failover trigger within the BIG-IP's high availability settings.
CPU utilization percentage is a performance metric; while high usage might indicate a problem, it generally does not directly trigger a failover unless specific, custom thresholds are configured and exceeded.
BIG-IP systems use features like VLAN Failsafe to monitor the communication ability on configured VLANs. If a critical VLAN fails to communicate for a specified period, it indicates a network issue severe enough to warrant a failover to the standby unit, ensuring high availability.
Concept tested: BIG-IP failover triggers and VLAN health monitoring
Source: https://techdocs.f5.com/en-us/big-ip-system-and-network-management-16-0-0/big-ip-system-redundant-pair-configuration-and-management/configuring-fail-safe.html
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