<div dir="ltr"><div>Hey Manuel,</div><div>Did you tried creating a new network after modifying the .conf files and checking if VMs on that network had the correct MTU?<br></div><div>Also, kolla-ansible supports custom service configurations:<br><a href="https://github.com/openstack/kolla-ansible/blob/master/doc/source/admin/advanced-configuration.rst#openstack-service-configuration-in-kolla">https://github.com/openstack/kolla-ansible/blob/master/doc/source/admin/advanced-configuration.rst#openstack-service-configuration-in-kolla</a><br><br></div></div>