When deploying Networking Hubs using Stax Networks, a NAT Gateway can be deployed for egress connectivity from private subnets. By default, when enabled, Stax provisions a single NAT Gateway which resides in a single Availability Zone (AZ). An outage of that AZ would result in egress connectivity failing for private subnets in that Networking Hub.

Stax has introduced a new feature to allow deployment of highly available NAT Gateways that are redundant at the Availability Zone level. These can be deployed into networks provisioned using Stax Networks. You can make use of this feature when creating a new, or updating an existing, Networking Hub.

At this time, the feature is available via the Stax API and the Python SDK.