[Openstack-operators] [grizzly][quantum] Router/DHCP interface OVS port tags not reliably implementing

Jay Pipes jaypipes at gmail.com
Fri Jan 17 16:35:55 UTC 2014

On Fri, 2014-01-17 at 17:58 +0200, Jesse Pretorius wrote:
> On 17 January 2014 17:39, Jay Pipes <jaypipes at gmail.com> wrote:
>         I believe you may want to upgrade to OVS 1.11+ and see if the
>         problem
>         persists.
> Thanks Jay, although I don't see where that package is available for
> Precise? Precise-updates has the version that I have. Saucy seems to
> have 1.10. It would seem that the only option is to compile from
> source.

Yup :( That's exactly what we do in our Chef cookbooks...

> Why specifically 1.11+?

We discovered bugs in 1.04 around how the L2 GRE mesh was created that
allowed a single tenant to inadvertently flood the mesh with traffic and
effectively bring the whole tenant networking down. No idea if it's
related to what you're seeing, but we moved to OVS 1.11+ and did not
have the same issues, and performance/scalability was generally much


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