Hi, CM,
Yes running the network fo and also using voltage cables.
Using VLAN fail-safe option: (VLAN external / Timeout 30 / Action Failover) but this is configured only on Active Unit.
Yes, redundancy state preference is set to STANDBY for my Standby unit 2.
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Our everything was working fine but one day we faced some problem on Active unit as it was passing all the traffic to standy unit and got halted.
We rebooted the Active System but problem was still there then we configured Active/Active (Then we did set the redundancy state preference to Active on our unit 2 which was working as a Standby very well.
Now we have replaced the Active Unit with new Hardware which is working fine but the redundant unit which was in Active/Active mode is configured back to Active/Standby with prefrence of STANDBY, but again it getting Active itself.
Thanks
RGK