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Implement OS using existing network setup

 

 

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yacketrj at potsdam

Jul 30, 2013, 7:25 AM

Post #1 of 3 (50 views)
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Implement OS using existing network setup

Hello all!

We have a rather complex network setup where our HP BL460c G8's have multiple VLAN's assigned and bridges already created per VLAN. Would like to setup a new HP BL460c G8 using OpenStack and mirror the network setup, looks like Quantum+OVS would be the logical choice but not sure how one would use OVS with existing bridges. All of the examples I have seen build up the bridge and assign the port which in the end executes the required OS commands to build out the network. How would one go about setting up OpenStack networking to utilizing existing network configuration?

Regards,

Ron

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Robert.vanLeeuwen at spilgames

Jul 30, 2013, 7:45 AM

Post #2 of 3 (50 views)
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Re: Implement OS using existing network setup [In reply to]

> We have a rather complex network setup where our HP BL460c G8's have multiple VLAN's assigned and bridges already
> created per VLAN. Would like to setup a new HP BL460c G8 using OpenStack and mirror the network setup, looks like
> Quantum+OVS would be the logical choice but not sure how one would use OVS with existing bridges.
> All of the examples I have seen build up the bridge and assign the port which in the end executes the
> required OS commands to build out the network. How would one go about setting up OpenStack networking to utilizing existing network configuration?

Ron,

I would use use bridge_mapped networks and let Neutron / OVS handle everything.
When you create the bridge mapped network in Neutron you can specify which VLAN ID you would like to use by using:
--provider:segmentation_id $VLAN-ID
This way you can map your Neutron network to an existing VLAN.
Neutron will make sure the OpenVswitch will tag the packets to the appropriate VLAN.

Cheers,
Robert van Leeuwen
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diego.parrilla.santamaria at gmail

Jul 30, 2013, 8:44 AM

Post #3 of 3 (50 views)
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Re: Implement OS using existing network setup [In reply to]

If you want to replicate your existing network configuration with 'Neutron'
(sorry, I'm not done yet to this name), you have to use the Neutron API to
do this. Don't try to do it directly using ovs commands, 'Neutron' won't
recognize it.

Keep in mind that the networks created with Neutron API work great inside
the Nova sandbox. If you want to connect to other existing networks, may be
you have add them as external networks. My experience trying to add an
existing subnetwork and the corresponding VLAN as a new (not-external)
network was not as smooth as expected. Still you can give a try.

Cheers,
Diego

--
Diego Parrilla
<http://www.stackops.com/>*CEO*
*www.stackops.com | * diego.parrilla [at] stackops** | +34 649 94 43 29 |
skype:diegoparrilla*
* <http://www.stackops.com/>
*

*



On Tue, Jul 30, 2013 at 4:25 PM, Ronald J. Yacketta <yacketrj [at] potsdam>wrote:

> Hello all!
>
> We have a rather complex network setup where our HP BL460c G8's have
> multiple VLAN's assigned and bridges already created per VLAN. Would like
> to setup a new HP BL460c G8 using OpenStack and mirror the network setup,
> looks like Quantum+OVS would be the logical choice but not sure how one
> would use OVS with existing bridges. All of the examples I have seen build
> up the bridge and assign the port which in the end executes the required OS
> commands to build out the network. How would one go about setting up
> OpenStack networking to utilizing existing network configuration?
>
> Regards,
>
> Ron
>
> _______________________________________________
> OpenStack-operators mailing list
> OpenStack-operators [at] lists
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators
>

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