3.2. ML2/OVS to ML2/OVN in-place migration: validated and prohibited scenarios

Red Hat continues to test and refine in-place migration scenarios. Work with your Red Hat Technical Account Manager or Global Professional Services to determine whether your OVS deployment meets the criteria for a valid in-place migration scenario.

3.2.1. Validated ML2/OVS to ML2/OVN migration scenarios

DVR to DVR

Start: RHOSP 16.1.1 or later with OVS with DVR. Geneve project (tenant) networks.

End: Same RHOSP version and release with OVN with DVR. Geneve project (tenant) networks.

SR-IOV and TLS-everywhere were not present in the starting environment or added during or after the migration.

Centralized routing + SR-IOV with virtual function (VF) ports only

Start: RHOSP 16.1.1 or later with OVS (no DVR)and SR-IOV.

End: Same RHOSP version and release with OVN (no DVR) and SR-IOV.

Workloads used only SR-IOV virtual function (VF) ports. SR-IOV phyical function (PF) ports caused migration failure.