[Neutron Community] Neutron OVN vs OVS

Brian Haley haleyb.dev at gmail.com
Tue Jun 27 20:36:06 UTC 2023


Hi Karl,

On 6/27/23 3:34 PM, Karl Kloppenborg wrote:
> Hi Neutron community,
> 
> Firstly, apologies if this has been asked before, a cursory search of 
> the list rendered no information.
> 
> At a high level, is OVN replacing OVS in terms of the preferred standard 
> neutron deployment?
> 
> I am seeing more and more about OVN on the mailing list and wondering if 
> I should be investigating it to supersede OVS standalone.

Yes, in the Ussuri cycle a large effort was made to move all the 
networking-ovn code into the Neutron tree, instead of having it be an 
out-of-tree driver [0].

And finally in the Yoga cycle it was made the default for devstack [1].

Since then the two major distros, Ubuntu and Red Hat, have made OVN the 
default in their deployment tools, so going forward it is safe to assume 
it will eventually be in the majority for installations.

-Brian

[0] https://blueprints.launchpad.net/neutron/+spec/neutron-ovn-merge
[1] https://review.opendev.org/c/openstack/devstack/+/791436



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