Forum Discussion

Nimbostratus

Jan 10, 2024

F5 BigIp cluster active/stanby in Azure, failover very slow

Hello, I'm contacting you because I need to configure a F5 BigIp cluster in active/stanby in Azure, and I'm encountering a problem with failover. My infrastructure and part of the configuration loo...

cloud

Nikoolayy1

MVP

Jan 11, 2024

The Azure API is much slower than AWS API for example and as F5 in the cloud uses CFE as when there is a failover the F5 needs to call the API to change the elastic IP address attachment as cloud environments do not support GARP this is where the issue with more than a minute failover is seen.

Use Azure ALB for failover for ASM and LTM deployments as this was used in the old F5 azure arm templates but now you can modify the autoscale group if needed:

f5-azure-arm-templates-v2/examples/autoscale/payg/README.md at main · F5Networks/f5-azure-arm-templates-v2 · GitHub

Lightboard Lessons: BIG-IP Deployments in Azure Cl... - DevCentral (f5.com)

f5-azure-arm-templates/supported/failover/same-net/via-lb/3nic/existing-stack/byol/README.md at main · F5Networks/f5-azure-arm-templates · GitHub

For APM VPN deployments I suggest use F5 GTM and standalone APM devices:

https://my.f5.com/manage/s/article/K70300789