[Openstack] Connect VM network to exists VLAN network

Martinx - ジェームズ thiagocmartinsc at gmail.com
Sat Aug 16 21:48:39 UTC 2014

Hi Nahn,

I'm using IceHouse with Ubuntu 14.04.1, topology "VLAN Provider Networks",
like this:

 type_drivers = vlan
tenant_network_types = vlan
mechanism_drivers = openvswitch


# "vm network" - tag range, from 200 to 400
network_vlan_ranges = physnet1:200:400



enable_security_group = True
firewall_driver =

enable_tunneling = False
tenant_network_type = vlan
integration_bridge = br-int
network_vlan_ranges = physnet1:200:400
bridge_mappings = physnet1:br-eth1

Network and Compute Nodes OVS bridges ("vm network" VLAN(s), tagged on
physical switch ports, wired to eth1 of each server - sever's eth0 is the
management net, used by VNC consoles, glance, apt-get of servers itself,
ovs-vsctl add-br br-int
ovs-vsctl add-br br-eth1
ovs-vsctl add-port br-eth1 eth1

# net-node only:
ovs-vsctl add-br br-ex


Creating (controller) the Tenant Neutron Network(s) with tag VLAN200,

neutron net-create --tenant-id $TENANT_ID_0
--provider:physical_network=physnet1 --provider:network_type=vlan
--provider:segmentation_id=200 physnet1-vlan200
neutron net-create --tenant-id $TENANT_ID_1
--provider:physical_network=physnet1 --provider:network_type=vlan
--provider:segmentation_id=201 physnet1-vlan201

This way, your instances (vm) network might be (vlan200), and
your office ( vlan150?), then, they will talk easily, if you
have 1 gateway for both vlan150 (office) and vlan200-400 (OpenStack
Instances Network - VM).

This topology does not use Neutron L3 Router. You'll need an upstream
router(s) routing the traffic for all VLANs.

Hope it helps!


On 14 August 2014 14:00, Nhan Cao <nhanct92 at gmail.com> wrote:

> Hi
> I have to network:
> vm network:
> exist VLAN network:
> I want to connect from my VM network to physic VLAN network.
> How i config to connect?
> Thanks :)
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