Configuring and Managing Red Hat OpenShift Networking

• Network Architects and Network Administrators who are responsible for designing, managing, and optimizing network infrastructure within OpenShift clusters
• Platform Engineers and Cloud Administrators who support containerized and virtualized workloads on OpenShift platforms
• System Administrators: System administrators who seek to move traditional hypervisor-based workloads to OpenShift Virtualization and to manage their networking
• System Administrators who manage OpenShift clusters and require a deep knowledge of advanced networking features for diverse application requirements.

• Manage pod and service networks with CNIs, CNO, OVN-Kubernetes, and Multus.
• Provide workload isolation, multi-network connectivity, efficient traffic management, VM live migration, and external access using UDNs and CUDNs.
• Describe OpenShift DNS architecture, inspect CoreDNS, troubleshoot resolution, and implement forwarding.
• Design, implement, and manage comprehensive ingress networking.
• Implement and manage egress traffic control, including Egress Firewalls, Egress IPs, Egress Routers, and route overrides.
• Enable, configure, and manage native BGP routing with FRR and implement OVN-Kubernetes Route Advertisements.
• Configure OpenShift node networking and VM connectivity using the Kubernetes NMState Operator for high availability.
• Explain OpenShift Network Observability for visibility, troubleshooting, monitoring, and security enforcement.

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• Red Hat OpenShift Administration II: Configuring a Production Cluster | DO280

Core Networking with OVN-Kubernetes in OpenShift

• Explain how Kubernetes networking functions in the cluster, and manage pod and service networks with Container Network Interfaces (CNIs), the Cluster Network Operator (CNO), OVN-Kubernetes logical networks, and the Multus meta-plug-in.

Implementing and Managing User-defined Networks in Red Hat OpenShift

• Provide workload isolation, multi-network connectivity, efficient traffic management, VM live migration, and appropriate external access for OpenShift workloads by using user-defined networks (UDNs) and cluster user-defined networks (CUDNs).

Exploring and Managing DNS in Red Hat OpenShift

• Describe the DNS architecture of an OpenShift cluster, inspect the CoreDNS configuration, troubleshoot name resolution issues, and implement DNS forwarding for private domains.

Managing Ingress Traffic in Red Hat OpenShift

• Design, implement, and manage comprehensive and flexible ingress networking for applications that run in an OpenShift environment.

Managing Egress Traffic  in Red Hat OpenShift

• Implement and manage egress traffic control mechanisms in an OpenShift cluster, including Egress Firewalls, Egress IPs, Egress Routers, and route overrides for additional networks.

Implementing Native BGP Routing in Red Hat OpenShift

• Enable, configure, and manage native BGP routing capabilities using FRRouting (FRR) and implement OVN-Kubernetes Route Advertisements to dynamically expose cluster networks to the external physical provider network.

Configuring OpenShift Node and Virtual Machine Networking with NMState

• Design, configure OpenShift node networking and virtual machine connectivity using the Kubernetes NMState Operator to integrate with provider networks and ensure high availability.

Enabling OpenShift Network Observability to Monitor, Visualize & Secure Traffic

• Explain how the OpenShift Network Observability works to provide visibility,  troubleshoot network issues, monitor performance, and enforce security policies