Neutron/RoutedProviderNetworks

Routed Provider Network

This page is a HUGE work in progress!

As I've been working on routed networks patches, I decided that I should share how I am setting up my environment and using them.

Segment CRUD

There first thing is to enable segment CRUD. This patch is what you need. It is a service plugin that isn't enabled by default. First, edit you have the patch, edit /etc/neutron/neutron.conf and append segments to the list of service_plugins. Here's mine:

service_plugins = neutron.services.l3_router.l3_router_plugin.L3RouterPlugin, segments

Since segments is defined in setup.cfg, you actually need to reinstall neutron for this to work. In devstack, I just do this:

$ cd /opt/stack/neutron

$ sudo pip install -e file://$PWD

There is one more change you need to do assuming you're going to use vlans and ML2. You need to edit /etc/neutron/plugins/ml2/ml2_conf.ini to add your physnets and vlan ranges. I just use the same vlan segment id for each segment. But, the physnet has to be different for each segment.

[ml2_type_vlan]

network_vlan_ranges = segment-1:2000:2000, segment-2:2000:2000

At this point, restart the neutron service and then you should be able to create a multi-segmented network. This paste shows a details request / response. Note that it is not possible to create a multi-segmented network using the python-neutronclient at this time. It is also not yet possible to create or delete segments on an existing network.