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

Édouard Thuleau thuleau at gmail.com
Mon Jan 20 08:42:58 UTC 2014

I met a similar problem but only with VM tap (not with router or DHCP ports).
We proposed a fix [1] we attached with an opening bug [2].
The fix isn't yet ready (status WIP). Another patch [3] make a lot
change on this part of code (OVS agent interface loop). So we prefer
to wait it was finished to rebase our proposition on it.

[1] https://review.openstack.org/#/c/66375/
[2] https://bugs.launchpad.net/nova/+bug/1240849
[3] https://review.openstack.org/#/c/61964/


On Fri, Jan 17, 2014 at 5:35 PM, Jay Pipes <jaypipes at gmail.com> wrote:
> 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
> better.
> Best,
> -jay
> _______________________________________________
> OpenStack-operators mailing list
> OpenStack-operators at lists.openstack.org
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators

More information about the OpenStack-operators mailing list