Grizzly Simple Network Multi-host Topology

asked 2013-09-05 09:23:12 -0500

Y Sertdemir gravatar image


I want to setup a simple network topology but I want to have multi-host setup. I dont want to use separate network-node . My controller node's IP is, compute node is and physical router is In the future I will add more compute nodes. I will distribute to 200 IPs with DHCP, and VMs will reach physical router directly. Which components should I use? do you suggest linux-bridge or openvswitch? In addition I want to "quantum agent-list" command but it does not work, I stuck here.

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can you use nova-network instead of quantum?

fifieldt gravatar imagefifieldt ( 2013-09-11 23:23:11 -0500 )edit

I realized that network node's ovs plugin does not work at all, because of a kernel problem. I need to install my controller and network nodes again. Maybe I switch to nova-network, but I want to integrate quantum as well. Thanks for comment.

Y Sertdemir gravatar imageY Sertdemir ( 2013-09-12 00:27:59 -0500 )edit

3 answers

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answered 2013-09-13 00:04:59 -0500

rms_13 gravatar image

You would want to run all the service of openstack but nova-compute on your controller node. That includes quantum as well. Than, you want to run nova-compute on your compute-node(s). In the compute-node's nova.conf file, you would have to specify service-host as controller node. Please refer to the following link as a general guideline to setting up multinode setup.

Now come the question of choosing a plugin within quantum/neutron. It is really upto your setup. For future proofing I would suggest openvswitch against linux-bridge. In that case, you would have to run agent code in compute nodes as well.

Hope thats helpful

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answered 2013-09-23 01:14:01 -0500

Y Sertdemir gravatar image

I read lots of documents and I finally decided to go for Quantum and OpenvSwitch.

The quantum agent-list command is not working because of a problem I had. I deep inspected the every log files on every nodes, at last I found that the Openvswitch package is updated to latest debian package, and it does not supported the "tunneling". In addition, my ubuntu kernel have got broken by wrong repo sources, so I needed to install the nodes again. Fresh start was a better idea, it is working well now.

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answered 2013-09-17 01:30:19 -0500

marcelodieder gravatar image

What is your Openstack Version, Grizzly? And what is your repository? The problem with "quantum agent-list" may be with the version of the python-quantumclient.

See the guide:

I also suggested you to use quantum and openvswitch.

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Asked: 2013-09-05 09:23:12 -0500

Seen: 623 times

Last updated: Sep 23 '13