Dear all, I'm following the OpenStack guide for the implementation of SR-IOV mechanism driver. I'm planning to incorporate this driver to my current OpenStack deployment (Queens). Config SR-IOV Guide: https://docs.openstack.org/neutron/queens/admin/config-sriov.html At point 2, section "Configure neutron-server (Controller)" they said that I have to add the 'plugin.ini' file as a parameter to the neutron-server service. To do this they require to <<edit the appropriate initialization script to configure the neutron-server service to load the plugin configuration file>>: --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugin.ini I'd like to know a few things: (1) Which plugin.ini file are talking about? (2) How to set up the neutron-server initialization script to add the plugin.ini file? I understand that this varies between OS distro (I'm currently using Ubuntu 16.04 LTS server) Here are some things I tried... I got the following results executing this command: systemctl status neutron-server.service ● neutron-server.service - OpenStack Neutron Server Loaded: loaded (/lib/systemd/system/neutron-server.service; enabled; vendor preset: enabled) Active: active (running) since Tue 2020-12-29 18:13:50 -05 Main PID: 38590 (neutron-server) Tasks: 44 Memory: 738.8M CPU: 29.322s CGroup: /system.slice/neutron-server.service ├─38590 /usr/bin/python2 /usr/bin/neutron-server --config-file=/etc/neutron/neutron.conf --config-file=/etc/neutron/plugins/ml2/ml2_conf.ini --log-file=/var/log/neutron/neutron-server.log ... I see 2 things: (i) When neutron-server is exectured, the following parameters are passed: --config-file=/etc/neutron/neutron.conf --config-file=/etc/neutron/plugins/ml2/ml2_conf.ini --log-file=/var/log/neutron/neutron-server.log (ii) The file '/lib/systemd/system/neutron-server.service' is loaded and it has the following content: ... ExecStart=/etc/init.d/neutron-server systemd-start ... This indicates me that it's executing '/etc/init.d/neutron-server' script. So I suppose this is the file indicated to add the parameters of the SR-IOV OpenStack documentation, but I have no idea where to put them. For Red-Hat distros I found this documentation with the following configuration: https://access.redhat.com/documentation/en-us/ red_hat_enterprise_linux_openstack_platform/7/html/networking_guide /sr-iov-support-for-virtual-networking vi /usr/lib/systemd/system/neutron-server.service ... ExecStart=/usr/bin/neutron-server --config-file /usr/share/neutron/neutron-dist.conf --config-file /etc/neutron/neutron.conf --config-file /etc/neutron/plugin.ini --config-file /etc/neutron/plugins/ml2/ml2_conf_sriov.ini --log-file /var/log/neutron/server.log Thanks in advance, Gabriel Gamero