The network is a critical component for OpenShift because every piece of OpenShift solution is dependent on network availability, performance, scalability, and stability. Both control and data plane traffic uses different parts of the network to talk to one another. In order to make OpenShift solutions available most of the time and to avoid unplanned network outages, several things have to be considered:
- All the physical hosts running OpenShift require having redundant physical connectivity to access-level switches using MC-LAG or a similar technology
- A set of load balancers implemented in a redundant fashion with separate data and control planes
- A set of firewalls implemented in a redundant fashion with separate data and control planes
- A dedicated management network to be used where applicable for...