Introduction to UserDefinedNetwork(UDN)

In this must-watch tutorial, Red Hat Senior Technical Support Engineer Swadeep Asthana breaks down User-Defined Networks (UDN) in OpenShift. Learn how UDNs enable customizable, isolated networks for pods/VMs using CRDs like UserDefinedNetwork and ClusterUserDefinedNetwork. Discover why UDN is critical for multi-tenancy, VM live migration, and integration with external networks (VLANs, physical networks).

Key Topics Covered:
Primary vs Secondary UDN: Default traffic handling vs additional networks.
Layer3, Layer2, Localnet Topologies: Optimize performance and connectivity.
OVN-Kubernetes + Multus CNI: Architecture for multi-network support.
YAML Configurations: Step-by-step examples for namespace/cluster-scoped UDNs.
Limitations: DNS constraints, dynamic updates, and network policy restrictions.

Ideal For: DevOps engineers, Kubernetes admins, and cloud architects managing complex OpenShift clusters. Boost security, compliance, and network efficiency with UDN best practices!

Learn more: docs.redhat.com/en/documentation/openshift_contain…