101 · Question #325
When using a redundant pair of LTMs, it is most advantageous to use them in an Active/Active scenario because this provides additional load balancing capabilities.
The correct answer is B. False. Active/Standby is the preferred redundancy model for a pair of F5 BIG-IP LTM devices. Active/Active introduces asymmetric routing and state synchronization complexity that outweighs any perceived benefit.
Question
When using a redundant pair of LTMs, it is most advantageous to use them in an Active/Active scenario because this provides additional load balancing capabilities.
Options
- ATrue
- BFalse
How the community answered
(34 responses)- A18% (6)
- B82% (28)
Why each option
Active/Standby is the preferred redundancy model for a pair of F5 BIG-IP LTM devices. Active/Active introduces asymmetric routing and state synchronization complexity that outweighs any perceived benefit.
Active/Active does not provide simpler or more reliable load balancing for a redundant LTM pair - it introduces asymmetric routing problems and significantly greater configuration overhead compared to Active/Standby.
Active/Standby is the most advantageous configuration for a redundant LTM pair because one device handles all traffic while the standby unit maintains synchronized state and is ready for immediate failover, avoiding asymmetric routing issues. Active/Active requires both units to process traffic simultaneously and mirror connection state continuously, increasing configuration complexity and the risk of split-brain scenarios. F5 recommends Active/Standby as the simpler and more reliable high-availability design for most deployments.
Concept tested: F5 BIG-IP HA Active/Standby vs Active/Active redundancy
Source: https://techdocs.f5.com/en-us/bigip-17-1-0/big-ip-device-service-clustering-administration.html
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