@@ -131,6 +131,11 @@ In this configuration we are defining FLOATING_RANGE to be a

 subnet that exists in the private RFC1918 address space - however in

 in a real setup FLOATING_RANGE would be a public IP address range.

+Note that extension drivers for the ML2 plugin is set by

+`Q_ML2_PLUGIN_EXT_DRIVERS`, and it includes 'port_security' by default. If you

+want to remove all the extension drivers (even 'port_security'), set

+`Q_ML2_PLUGIN_EXT_DRIVERS` to blank.

+

 Neutron Networking with Open vSwitch and Provider Networks

 ==========================================================

@@ -31,6 +31,9 @@ Q_ML2_PLUGIN_GRE_TYPE_OPTIONS=${Q_ML2_PLUGIN_GRE_TYPE_OPTIONS:-tunnel_id_ranges=

 Q_ML2_PLUGIN_VXLAN_TYPE_OPTIONS=${Q_ML2_PLUGIN_VXLAN_TYPE_OPTIONS:-vni_ranges=1001:2000}

 # Default VLAN TypeDriver options

 Q_ML2_PLUGIN_VLAN_TYPE_OPTIONS=${Q_ML2_PLUGIN_VLAN_TYPE_OPTIONS:-}

+# List of extension drivers to load, use '-' instead of ':-' to allow people to

+# explicitly override this to blank

+Q_ML2_PLUGIN_EXT_DRIVERS=${Q_ML2_PLUGIN_EXT_DRIVERS-port_security}

 # L3 Plugin to load for ML2

 ML2_L3_PLUGIN=${ML2_L3_PLUGIN:-neutron.services.l3_router.l3_router_plugin.L3RouterPlugin}

@@ -113,6 +116,8 @@ function neutron_plugin_configure_service {

     populate_ml2_config /$Q_PLUGIN_CONF_FILE ml2 type_drivers=$Q_ML2_PLUGIN_TYPE_DRIVERS

+    populate_ml2_config /$Q_PLUGIN_CONF_FILE ml2 extension_drivers=$Q_ML2_PLUGIN_EXT_DRIVERS

+

     populate_ml2_config /$Q_PLUGIN_CONF_FILE ml2 $Q_SRV_EXTRA_OPTS

     populate_ml2_config /$Q_PLUGIN_CONF_FILE ml2_type_gre $Q_ML2_PLUGIN_GRE_TYPE_OPTIONS