This image shows an Oracle Cloud region with a single availability domain with three fault domains, a VCN, and a regional subnet. A public load balancer is connected to a CockroachDB in each fault domain. The public load balancer listens on TCP Ports 26257, 8080. A security list resides withing the regional subnet. Route tables located in the VCN and are used to direct traffic from the subnet to the appropriate destination outside the VCN. The VCN has an Internet Gateway.