Forum Discussion
John_Heyer_1508
Cirrostratus
CirrostratusRapid failover/failback problem in AWS
We experienced a network-based failover on our F5 pair in AWS. Both are running 12.1.3.5. The logs from secondary show it detected a connectivity problem to primary and took over:
Jul 19 16:26:...
John_Heyer_1508Cirrostratus
CirrostratusIt looks like there's a couple bug IDs for this, but it's essentially a problem in the failover script that does the EC2 API call (aws-failover-tgactive.sh)
The work-around for versions 11 and 12 is configure MAC masquerading. The long-term fix is upgrade to version 13 which does not have this issue.