User Defined Networks: Gateway to Secure Multi-Tenancy
summary
Replaces flat pod networking with namespace-scoped or cluster-scoped UDNs that give per-namespace CIDRs, support PUDN vs SUDN (primary for pod IPs, secondary for extra interfaces), and offer L3, L2 or local-net topologies. OVN controller automatically creates NADs (NAD auto-creation) and demo VMs get IPs like 20.10.3.4 on an L2 primary network. Cluster UDN maps a physical bridge to multiple VLANs via OVS, and BGP advertisement of pod CIDRs exports routes to provider routers for dynamic reachability.
AI-written summary · about
chapters (9)
- 0:00Introduction
- 0:21User Defined Networks
- 1:05Why use User Defined Networks in OpenShift
- 3:30UDN challenges solved
- 8:31UDN technical workings
- 12:01UDN use cases
- 18:04BGP protocol integration with User Defined Networks
- 21:12Live UDN setup
- 26:33Q&A
related talks
01h 21mTutorial: Mind Your Pod's Business: Netwo...
33mMulti-tenant K8s Networking with Kube-OVN
49mVM-Friendly Networking on Kubernetes: Customizable Networks, Live Migration, and Best Practices
36mVPCs for Everyone: Multi-Tenancy and Advanced Networking with kube-OVN
19mCrossing the border - VM goes on a BGP adventure
31mCreating a Unified Network Plane across Kubernetes with Kube-OVN
51mOVN: Integrating an Off-the-Shelf SDN into a Virtualization Platform
29mLiving on the Edge with DCN Networking