Recommmended configuration settings for OpenStack Neutron with ML2/OVN backend in large scale environment

Solution Verified - Updated -

Issue

When using RHOSP with the ML2/OVN backend, certain Neutron configuration options may cause a high load on OVN in environments with a large number of compute nodes. This can cause new ports to be provisioned slowly, which will result in new instances spawning in an "ERROR" state.

Environment

  • Red Hat OpenStack (RHOSP) 16.1, 16.2

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