Enabling FQDN Gateways

Enabling Two AZ HA for FQDN Gateways

  1. On the Gateway page, highlight the gateway, and click Edit.

  2. At Gateway for High Availability Peering, select a subnet (a public subnet for AWS, GCP, and OCI) in the dropdown menu and click Create. A backup gateway will be created. This takes a few minutes.

For FQDN function, the primary gateway and backup gateway load balance the Internet bound traffic from different subnets based on a route table.

Enabling Three AZ HA for FQDN Gateways

Here are the steps to enable 3 AZ HA FQDN gateways:

  1. Launch an Aviatrix gateway in AZ1.

  2. Launch an Aviatrix gateway in AZ2.

  3. Launch an Aviatrix gateway in AZ3.

  4. Attach the same FQDN tag to each gateway launched in the steps above.

  5. Enable the FQDN tag.

Following the instructions above, Aviatrix Controller will try to load balance the route tables to point to the gateways with AZ affinity. When a gateway fails, the Controller will reprogram the VPC/VNet route table to redistribute the traffic to the remaining gateways.