201 · Question #234
When network failover is enabled, which of the following is true?
The correct answer is C. A network failure will not cause a failover as long as there is a voltage across the failover cable. When network failover is enabled alongside a hardwired failover cable, the cable's status takes precedence, preventing a failover if the network experiences issues while the cable remains active.
Question
When network failover is enabled, which of the following is true?
Options
- AThe failover cable status is ignored. Failover is determined by the network status only.
- BEither a network failure or loss of voltage across the failover cable will cause a failover.
- CA network failure will not cause a failover as long as there is a voltage across the failover cable.
- DThe presence or absence of voltage over the fail over cable takes precedence over network failover.
How the community answered
(38 responses)- A5% (2)
- B8% (3)
- C71% (27)
- D16% (6)
Why each option
When network failover is enabled alongside a hardwired failover cable, the cable's status takes precedence, preventing a failover if the network experiences issues while the cable remains active.
The failover cable status is not ignored; it is given precedence over network failover when both are enabled.
While loss of voltage across the failover cable would cause a failover, a network failure alone will not if the hardwired cable is still operational and signaling a healthy peer.
When both network failover and a hardwired failover cable are configured, the hardwired cable's status takes precedence; a network failure will not trigger a failover as long as the hardwired cable remains active and signals a healthy peer. This design prevents unnecessary failovers caused by transient network issues when the devices are still directly connected via the dedicated cable.
The statement is partially true regarding precedence but is less precise than option C, which specifically describes how network failover is affected when the hardwired cable is active.
Concept tested: F5 BIG-IP Network vs. Hardwired Failover
Source: https://techdocs.f5.com/en-us/big-ip-system-and-module-management-15-1-0/big-ip-system-management-basics/configuring-failover.html
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