An externalIP of Service not reachable from other namespaces within the same cluster after OVN migration

Solution Verified - Updated -

Issue

After a migration from OpenShift-SDN to OVN-Kubernetes a project was unable to reach an IP address that belongs to an externalIP set by other project on the same cluster.

Environment

  • OpenShift Container Platform
  • OpenShift-SDN using network policy (netpol) mode and configured to setup multitenant isolated network
  • A service with externalTrafficPolicy (ETP) set to 'Local'

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