Cannot enable multi queue networking with Juniper contrail vrouter and nova networking in Red Hat OpenStack Platform 10

Solution In Progress - Updated -

Issue

Cannot enable multi queue networking with Juniper conntrail vrouter and nova networking in Red Hat OpenStack Platform 10

libvirt instance creation fails with:

error: Failed to create domain from instance-<instance-id>.xml
error: Unable to create tap device tap<tap-id>: Invalid argument

Environment

Red Hat OpenStack Platform 10

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