Installing and configuring Neutron components

To configure distributed virtual routers, there are a few required components that must be installed and configured:

• The ML2 plugin

• The L2population mechanism driver

• The Open vSwitch mechanism driver

• The layer 3 agent installed on all network and compute nodes

• The external bridge configured on all network and compute nodes

Installing additional L3 agents

To install the Neutron L3 agent, run the following command on the remaining compute nodes if it has not yet been installed:

# apt-get install neutron-l3-agent

Defining an interface driver

Open vSwitch and the Open vSwitch mechanism driver are required to enable and utilize distributed virtual routers.

Update the Neutron L3 configuration file on the compute nodes and specify the following interface driver:

[DEFAULT] 
...
interface_driver = neutron.agent.linux.interface.OVSInterfaceDriver

Enabling distributed mode

The ML2 plugin is required to operate distributed virtual routers and must be configured accordingly...