Network architecture (network virtualization or software-defined network)

The Cloud Foundation network is preconfigured to allow for simplicity of the configuration and provide the services as appropriate services for the rack. The physical configuration of the network is shown in the following diagram:

Figure 10: Physical network design

All hosts in a physical rack are connected to both ToR switches with 10 GB links. NIC port 1 is connected to ToR switch 1 and NIC port 2 is connected to ToR switch 2, with link aggregation (LAG) on each host.

The BMC is connected to the management switch over a 1G connection on each host. This connection is used for OOB management. Both ToR switches are further connected to a pair of spine switches in a dual-LAG configuration using 40G links. The spine switches are an aggregation layer for connecting multiple racks.

Cloud Foundation is designed...