Hi Doude,

Thanks for your questions.  Its still early days for Quantum and we're
actually just now in the process of putting together the user facing
documentation for.  So congrats on getting this far without the
documentation :)

Great questions.  I've responded to your questions below.

Dan

On Thu, Sep 15, 2011 at 9:34 AM, Doude <doudou...@gmail.com> wrote:

> Hi,
>
> I try to use Quantum with plugin OpenVSwitch on Nova.
> I get the last trunk source of Nova (r) and Quantum (r).
> I set flags for Nova and I start it. It use tyhe Quantum network
> manager, the libvirt vif driver OVS, the linux net interface driver
> OVS and the nova IPAM.
> I configured Quantum and I start it.
>
> Some questions:
> 1) It's not possible to specified the VLAN id for a network ?
>

Right now the OVS plugin treats VLANs as a pool, with each quantum network
being allocated a VLAN ID chosen by the Plugin.  We'll soon have the ability
to create a network with a specific VLAN + NIC, which has been on our TODO
list for a while.  I would expect this as part of the first Essex drop.


> 2) The network/port creation on quantum is not pass to nova ?
>

With the QuantumManager, the flow actually works in the other direction.
 You spin up a VM and the QuantumManager talks to the Quantum API to create
a port on each appropriate network.


> 3) It's possible to specified which network(s) an instance is
> associated ? Actually, a new instance is associated with all available
> networks
>

Yes.  The QuantumManager actually has two mechanisms for this.

First, when you create a network using nova-manage, you can associate it
with a project using the --project_id flag.  This means each VM for the
project will get this network.  If a network is created but not associated
with a project, it is "global", meaning all VMs will get this network.  This
is useful for service providers who want to have a network that all
instances share (e.g., a public network).

The second option is to use the os-create-server-ext API extension, which
was recently added to Nova by folks at NTT.  This let's you pass in a list
of Quantum network UUIDs when creating a server.  This feature is more
experimental, as there is not built-in support for it in standard nova
clients.

I'll definitely send you drafts of the Quantum Docs which should lay out
these concepts more clearly.  We're targeting a first cut of the docs for
the Diablo release that is happening in one week on 9/22.




>
> Regards,
> Doude
>
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-- 
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Dan Wendlandt
Nicira Networks, Inc.
www.nicira.com | www.openvswitch.org
Sr. Product Manager
cell: 650-906-2650
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