@@ -171,7 +171,7 @@ function configure_neutron_new {

         iniset $NEUTRON_CORE_PLUGIN_CONF ml2_type_vxlan vni_ranges 1001:2000

         iniset $NEUTRON_CORE_PLUGIN_CONF ml2_type_flat flat_networks public

         if [[ "$NEUTRON_PORT_SECURITY" = "True" ]]; then

-            iniset $NEUTRON_CORE_PLUGIN_CONF ml2 extension_drivers port_security

+            neutron_ml2_extension_driver_add port_security

         fi

     fi

@@ -489,6 +489,18 @@ function neutron_service_plugin_class_add_new {

     iniset $NEUTRON_CONF DEFAULT service_plugins $plugins

 }

+function _neutron_ml2_extension_driver_add {

+    local driver=$1

+    local drivers=""

+

+    drivers=$(iniget $NEUTRON_CORE_PLUGIN_CONF ml2 extension_drivers)

+    if [ $drivers ]; then

+        drivers+=","

+    fi

+    drivers+="${driver}"

+    iniset $NEUTRON_CORE_PLUGIN_CONF ml2 extension_drivers $drivers

+}

+

 function neutron_server_config_add_new {

     _NEUTRON_SERVER_EXTRA_CONF_FILES_ABS+=($1)

 }

@@ -561,6 +573,15 @@ function neutron_service_plugin_class_add {

     fi

 }

+function neutron_ml2_extension_driver_add {

+    if is_neutron_legacy_enabled; then

+        # Call back to old function

+        _neutron_ml2_extension_driver_add_old "$@"

+    else

+        _neutron_ml2_extension_driver_add "$@"

+    fi

+}

+

 function install_neutron_agent_packages {

     if is_neutron_legacy_enabled; then

         # Call back to old function

@@ -870,6 +870,16 @@ function _neutron_service_plugin_class_add {

     fi

 }

+# _neutron_ml2_extension_driver_add_old() - add ML2 extension driver

+function _neutron_ml2_extension_driver_add_old {

+    local extension=$1

+    if [[ $Q_ML2_PLUGIN_EXT_DRIVERS == '' ]]; then

+        Q_ML2_PLUGIN_EXT_DRIVERS=$extension

+    elif [[ ! ,${Q_ML2_PLUGIN_EXT_DRIVERS}, =~ ,${extension}, ]]; then

+        Q_ML2_PLUGIN_EXT_DRIVERS="$Q_ML2_PLUGIN_EXT_DRIVERS,$extension"

+    fi

+}

+

 # mutnauq_server_config_add() - add server config file

 function mutnauq_server_config_add {

     _Q_PLUGIN_EXTRA_CONF_FILES_ABS+=($1)