101 · Question #15
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. F5 BIG-IP network failsafe monitors VLAN communication ability and triggers a failover if the active system loses the ability to send or receive traffic on a monitored VLAN.
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
(48 responses)- A2% (1)
- B4% (2)
- C8% (4)
- D85% (41)
Why each option
F5 BIG-IP network failsafe monitors VLAN communication ability and triggers a failover if the active system loses the ability to send or receive traffic on a monitored VLAN.
Bandwidth utilization is not a supported failover trigger in BIG-IP redundant pair configurations; BIG-IP does not use throughput thresholds to initiate a failover event.
Duplicate IP address detection is not a configurable failover trigger in BIG-IP HA; it is a network configuration issue addressed at the IP planning level, not a monitored condition that initiates failover.
CPU utilization percentage is not a supported failover trigger in BIG-IP redundant pair configurations; BIG-IP does not initiate failover based on processor load.
The BIG-IP VLAN failsafe feature actively probes connectivity on a specified VLAN, and if communication fails for a configured timeout period, it triggers failover to the standby unit - ensuring the active role is held only by the device that has functional network connectivity.
Concept tested: BIG-IP VLAN failsafe as a network-based failover trigger
Source: https://support.f5.com/csp/article/K9057
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