[Openstack-operators] [Large deployments] Openstack Large deployment using DVR

Kosnik, Lubosz lubosz.kosnik at intel.com
Tue Nov 1 14:21:52 UTC 2016


Please just remember that today many high level features like LBaaSv2 + Octavia is not working [1] when you’re using DVR + L3/HA.
Designing that cloud you need to remember that for today there is a huge chance that you will not be able to use anything except base L2/L3 connectivity from networking perspective.

[1] https://bugs.launchpad.net/neutron/+bug/1583694

Regards.
Lubosz Kosnik
Cloud Software Engineer OSIC
lubosz.kosnik at intel.com<mailto:lubosz.kosnik at intel.com>

On Nov 1, 2016, at 8:39 AM, Satyanarayana Patibandla <satya.patibandla at gmail.com<mailto:satya.patibandla at gmail.com>> wrote:

Thanks for your response. We are assuming that if we use DVR with L3 HA there is no need of network segment/cluster. Could you please share your thoughts on this.

On Tue, Nov 1, 2016 at 6:48 PM, Clayton O'Neill <clayton at oneill.net<mailto:clayton at oneill.net>> wrote:
On Tue, Nov 1, 2016 at 7:19 AM, Satyanarayana Patibandla
<satya.patibandla at gmail.com<mailto:satya.patibandla at gmail.com>> wrote:
> We are planning for a new Openstack large deployment ( Around 25 K VMs). For
> external routing we want to use DVR for instances with floating IP and
> Network node L3 agent for instances with private IP. Our deployment is DVR
> with L3 HA.It seems still many people not yet started using DVR in
> production for large deployments. Did anyone use DVR in their Large/Medium
> production deployment. If you can share your experiences that will be
> helpful to us and that will save most of our time.

I've asked this question in operator sessions at the Summits and at
the NYC operators mid-cycle with not much response.  In the Neutron
feedback session last week, there was one person that said he was
running DVR, but that it had architectural issues with IPv6.  I got
the impression that his environment was much smaller than what you're
considering.

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