In order to use Neutron with devstack (http://devstack.org) a single node setup, you'll need the following settings in your local.conf (see this page for more details on local.conf).
[[local|localrc]] disable_service n-net enable_service q-svc enable_service q-agt enable_service q-dhcp enable_service q-l3 enable_service q-meta # Optional, to enable tempest configuration as part of devstack enable_service tempest
Then run stack.sh as normal.
If tempest has been successfully configured, a basic set of smoke tests can be run as follows:
$ cd /opt/stack/tempest $ nosetests tempest/scenario/test_network_basic_ops.py
See the Neutron Admin Guide for details on interacting with Neutron: http://docs.openstack.org/trunk/openstack-network/admin/content/index.html
See the following page for instructions on configuring Neutron (then called Quantum, which tells you how old the linked doc is) with OVS on XS/XCP: QuantumDevstackOvsXcp
A more interesting setup involves running multiple compute nodes, with Neutron networks connecting VMs on different compute nodes.
You should run at least one "controller node", which should have a localrc that includes at least:
disable_service n-net enable_service q-svc enable_service q-agt enable_service q-dhcp enable_service q-l3 enable_service q-meta enable_service neutron
You can then run many compute nodes, each of which should have a localrc which includes the following, with the IP address of the above controller node:
ENABLED_SERVICES=n-cpu,rabbit,neutron,q-agt SERVICE_HOST=[IP of controller node] MYSQL_HOST=$SERVICE_HOST RABBIT_HOST=$SERVICE_HOST Q_HOST=$SERVICE_HOST
Note: the need to include 'rabbit' here seems to be a bug, which may have been fixed by the time you're reading this.If 'rabbit' is not specified, nova-compute also will try to connect to rabbit on localhost, not the "controller host". See the following link for info on both issues: https://answers.launchpad.net/devstack/+question/197749