F5 Public Cloud Solutions > A&O Toolchain: BIG-IP HA in Public Cloud with Terraform (Agility Labs 2023) > 4. HA Failover via Cloud Failover Extension (CFE) Source | Edit on

4.2. Lab Scenario¶

You will configure HA failover via the F5 Cloud Failover Extension (pre-installed as part of the initial onboarding) and test a failover between BIG-IP instances.

4.2.1. Network Diagram¶

Two AWS VPCs are connected to an AWS Transit Gateway, which routes traffic between the VPCs. The app VPC contains two application server instances (each in a different availability zone). The hub VPC contains two BIG-IP VE instances (each in a different availability zone).

../../_images/aws-lab-diagram-ha-cfe.png

4.2.2. Pre-existing BIG-IP Cluster Configuration¶

During the initial onboarding process, the two BIG-IPs were configured as follows:

Sync-Failover Device Group (active-standby)
Config sync on ‘internal’ interface
Network Failover on ‘internal’ interface

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