This image shows an Oracle Cloud Infrastructure (OCI) Dedicated Region with a Compartment, a VCN with two subnets, an Availability Domain, and three fault domains. Oracle Cloud Guard and OCI Object Storage reside in the Region.

The VCN (10.0.0.0/24) has a dynamic routing gateway (DRG), NAT gateway, Internet gateway, and Service gateway. A customer data center can connect to the DRG with Site-to-Site VPN or OCI FastConnect.

The public subnet is 172.16.1.0/24. The OCI Bastion host/head node is in Fault Domain 2.

The private subnet is 172.16.2.0/24. An Instance Pool spans all three fault domains and contains three OCI Compute Bare Metal AI nodes. An RDMA + RoCE Network links each of the nodes to the OCI Bastion host in the public subnet.