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Hi, 
just that we're on the same page. Please have a look at this picture:
http://docs.openstack.org/havana/install-guide/install/apt/content/figures/3/a/common/figures/Neutron-PhysNet-Diagram.png

With the provider network you create a network that matches the green
External & the purple api network (as you have a combined controller +
network node). This is where you already have vlan, right? 

And on the green data network you try to use gre, right?

Or does you controller only have one physical nic for all kind of
traffic?


I'm sorry but I do not yet understand your setup and what you're trying
to achieve.

Please keep always the mailing lists on cc, as others might also be
interested.



Regards,
Andreas



On Fri, 2014-08-15 at 14:21 +0700, Nhan Cao wrote:
> hi,
> i deploy on multinode with neutron and openvswitch.
> My Infrastructure has a exists VLAN, now, i'm using GRE type network.
> I found a article about that
>  http://trickycloud.wordpress.com/2013/11/12/setting-up-a-flat-network-with-neutron/
> Could you give me a advice? i should choose VLAN or GRE for best?
> Thanks
> 
> 
> 
> 
> 
> 
> 2014-08-15 13:46 GMT+07:00 Andreas Scheuring
> <scheuran at linux.vnet.ibm.com>:
>         Hi Nhan,
>         I guess more information is required to help you out there.
>         
>         It would be helpful to know which setup you're using, e.g. a
>         singlenode
>         or multinode setup, openvswitch for network virtualiation or
>         something
>         else? Are you using nova network or neutron networking?
>         
>         If I got it right you created a tenant network in openstack
>         (in your
>         case vm network). In addition your host (hypervisor) has a an
>         eth
>         interface into the physical network, right?
>         
>         You also mentioned that your physical network is a vlan
>         network. Is your
>         hypervisor aware of this vlan tagging or is this done by a
>         access port
>         config in your switch?
>         
>         
>         And what you want to achieve is to connect a vm attached to
>         the
>         openstack vm network to your physical vlan network. Did I get
>         you right?
>         
>         Basically you would create a so called "provider network" that
>         represents your physical network and connect this provider
>         network via a
>         virtual router to your vm network.
>         
>         More information you can find here:
>         http://docs.openstack.org/admin-guide-cloud/content/under_the_hood_openvswitch.html#under_the_hood_openvswitch_scenario1
>         
>         
>         Regards,
>         Andreas
>         
>         
>         
>         On Fri, 2014-08-15 at 00:00 +0700, Nhan Cao wrote:
>         > Hi
>         > I have to network:
>         > vm network: 10.2.21.0/24
>         > exist VLAN network: 192.168.1.0/24
>         > I want to connect from my VM network to physic VLAN network.
>         >
>         > How i config to connect?
>         >
>         >
>         >
>         > Thanks :)
>         >
>         >
>         
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