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Hi Nishant,
Following Salvatore suggestion, I think the best is to consider using ML2 plugin to make several backend technologies available in your setup.
If you are looking to deploy Mellanox solution aside with other technology, there is Mellanox ML2 Mechanism Driver that currently under review for Icehouse release: https://review.openstack.org/#/c/72854/.

BR,
Irena

From: Salvatore Orlando [mailto:sorlando at nicira.com]
Sent: Monday, February 17, 2014 11:02 AM
To: nishant kumar
Cc: Open Stack List
Subject: Re: [Openstack] Are multiple neutron plugins on a server supported?

Hi Nishant,

unfortunately Neutron at the moment supports only a single plugin for each service. This means you can only specify a single core_plugin.
If your goal is to support multiple backend technologies in your deployment, you should perhaps have a look at the ML2 where deployment of multiple drivers should be possible.

Salvatore

On 17 February 2014 08:53, nishant kumar <nishantkumar_2k at yahoo.com<mailto:nishantkumar_2k at yahoo.com>> wrote:
Hi All,
While setting up a neutron plugin (like ovswitch, mellanox etc), we need to specify plugin name in /etc/neutron/neutron.conf (on the neutron server node) as follows:

core_plugin = neutron.plugins.mlnx.mlnx_plugin.MellanoxEswitchPlugin
My query is:
Is there a way to specify and use multiple plugins at the same time?

Background:
I would like to use two plugins at same time to make use of exclusive features in NIC cards from 2 vendors. Both cards will be installed on same compute node.


Thanks,
Nishant

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