Learning OpenStack Networking - Third Edition

Defining an interface driver

The Neutron L3 agent must be configured to use an interface driver that corresponds to the chosen mechanism driver. In a reference implementation, that can be either the Linux bridge or Open vSwitch drivers. In this environment, the linux bridge driver will be installed on controller01.

On the controller01 node, update the Neutron L3 agent configuration file at /etc/neutron/l3_agent.ini and specify the following Linux bridge interface driver for this particular environment:

[DEFAULT]...interface_driver = linuxbridge

For your reference, the following can be used when the network node hosting routers is configured for Open vSwitch:

[DEFAULT]...interface_driver = openvswitch