openstack team mailing list archive

[Mohammad Banikazemi <mb@xxxxxxxxxx>]

Trying to setup something similar to the Demo Setup described on the
Openstack Quantum Admin Guide posted at:
http://docs.openstack.org/trunk/openstack-network/admin/content/app_demo.html
. I am using devstack to do the installation.


For the Network Node it says three network interfaces are required:


>The node must have at least three network interfaces. The first is used to
communicate with the controller node,
>this is via the management network. The IP address of this interface
should be configured to 100.1.1.12/24.
>The second interface will be used for the VM traffic, this is on the data
network. The third interface will be used to
>connect to the external gateway on the network. This interface will be
bridged to the Open vSwitch bridge "br-ex" interface.


1- Anyway we can set things up with only one or two interfaces? This is a
real requirement or just to make the demo setup easier to implement?


2- Right now I only have two interfaces on my server and if I connect
either of them to br-ex my server (the node and all the VMs on it) becomes
unreachable. Right now I want to have only one single server for my
experiments so I really do not need the network for VM traffic.


3- Is the br-eht1 bridge required for VM to VM communication is there to
deal with namespaces? Earlier all I had to do to connect VMs on the same
network together was to connect say eth1 directly to br-int. Now, there is
this additional br-eth1 that needs to be created.


Thanks.



From:	Dan Wendlandt <dan@xxxxxxxxxx>
To:	Bilel Msekni <skible@xxxxxxxxxx>,
Cc:	openstack@xxxxxxxxxxxxxxxxxxx
Date:	09/10/2012 02:43 PM
Subject:	Re: [Openstack] Quantum features in the folsom release
Sent by:	openstack-bounces+mb=us.ibm.com@xxxxxxxxxxxxxxxxxxx



On Mon, Sep 10, 2012 at 11:07 AM, Bilel Msekni <skible@xxxxxxxxxx> wrote:
> Hi Stackers,
>
> Can someone here help me out by detailing the new Quantum features that
will
> be available in the Folsom release. Even a link or anything could help !
i
> can't seem to find any proper documentation and i have to persuade my
boss
> about the potentials of Quantum :)

Hi Bilel,

Don't worry, the Quantum team is working hard on docs for Folsom as we
speak.

At an extremely high-level, the two main things that Quantum provides are:

1) A rich tenant-facing API for defining networks.  This let's tenants
create rich network topologies, including multiple private networks,
multi-tier web applications, etc. and choose which IP subnets are used
on these networks (this even works if two tenants decide to use the
same subnet).

2)  Quantum has pluggable backends that allow cloud operators to use
more advanced network technologies on the back-end.  For example, you
can use Open vSwitch tunneling to avoid limitations around VLANs or
take advantage of a plugin that is aware of advanced hardware
capabilities.

The Quantum Admin Guide is still in draft form and we're hoping to
have a publicly consumable draft near the end of this week.  That
should provide the additional details about specific capabilities.

Dan


>
> Thanks
>
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--
~~~~~~~~~~~~~~~~~~~~~~~~~~~
Dan Wendlandt
Nicira, Inc: www.nicira.com
twitter: danwendlandt
~~~~~~~~~~~~~~~~~~~~~~~~~~~

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