Common network topologies for OpenShift deployments

Though each and every network infrastructure is unique in one way or other, all of these networks have a lot in common and can be split into two different types:

• Physical or data center networks
• Virtual or cloud networks

Data center networks

Most of the physical and data center networks a similar structures and components, such as the following:

• Core/spine layer switches: To interconnect different parts of the network, including aggregation/leaf switches, as well as, edge of the network and/or even Data Center Interconnect links
• Access/leaf switches: To connect physical servers to the revenue-generating network
• Edge firewalls: To filter the external traffic to the inside...