@gurpsing we discussed this RFE during the Neutron squad bug triage. This is a RFE that requires prioritization from product management.
@Terry, once you enable the aging mechanism you probably have to add the THT support for this as i can only see it in puppet: https://opendev.org/openstack/puppet-neutron/commit/e2b6b6aeea8dff88ae879eedd4adae32bb484ce4