
ovs vxlan become supported on most distribution and provides isolated `multi tenant` networking without special `vlan` aware switch. In single node deployment you will just see the br-tun ovs bridge created. In multi-node setup you might need to adjust the MTU settings. If your physical switch supports >=1550 MTU size probably you will not see any issue. If your guest image honors the MTU size offered via dhcp, you can adjust your dnsmask settings with the correct (likely 1450 byte) MTU size. cirros (udhcp) does not honors these setting, you might need to set lower MTU size on br-ex and/or adjust network_device_mtu option in your local.conf. The default changed, because it will be used with the multi-node neutron jobs. If you want the original behavior for whatever reason add these to your `local.conf`: ENABLE_TENANT_TUNNELS=False Q_ML2_TENANT_NETWORK_TYPE=local Change-Id: Id33ff0eca44905b3996618f1035ad984a6819b5b
Neutron plugin specific files
Neutron plugins require plugin specific behavior.
The files under the directory, lib/neutron_plugins/
, will be used
when their service is enabled.
Each plugin has lib/neutron_plugins/$Q_PLUGIN
and define the following
functions.
Plugin specific configuration variables should be in this file.
- filename:
$Q_PLUGIN
- The corresponding file name MUST be the same to plugin name
$Q_PLUGIN
. Plugin specific configuration variables should be in this file.
- The corresponding file name MUST be the same to plugin name
functions
lib/neutron
calls the following functions when the $Q_PLUGIN
is enabled
neutron_plugin_create_nova_conf
: setNOVA_VIF_DRIVER
and optionally set options in nova_conf e.g. NOVA_VIF_DRIVER=${NOVA_VIF_DRIVER:-"nova.virt.libvirt.vif.LibvirtGenericVIFDriver"}neutron_plugin_install_agent_packages
: install packages that is specific to plugin agent e.g. install_package bridge-utilsneutron_plugin_configure_common
: set plugin-specific variables,Q_PLUGIN_CONF_PATH
,Q_PLUGIN_CONF_FILENAME
,Q_PLUGIN_CLASS
neutron_plugin_configure_debug_command
neutron_plugin_configure_dhcp_agent
neutron_plugin_configure_l3_agent
neutron_plugin_configure_plugin_agent
neutron_plugin_configure_service
neutron_plugin_setup_interface_driver
has_neutron_plugin_security_group
: return 0 if the plugin support neutron security group otherwise return 1neutron_plugin_check_adv_test_requirements
: return 0 if requirements are satisfied otherwise return 1