[openstack-dev] [neutron][dvr] DVR L2 agent is removing the br-int OVS flows

Anna Kamyshnikova akamyshnikova at mirantis.com
Fri Aug 21 11:45:25 UTC 2015


Hi, Artur!

Thanks, for bringing this up! I missed that. I push change for that in a
short time.

On Fri, Aug 21, 2015 at 1:35 PM, Korzeniewski, Artur <
artur.korzeniewski at intel.com> wrote:

> Hi all,
>
> After merging the “Graceful ovs-agent restart”[1] (great work BTW!), I’m
> seeing in DVR L2 agent code place where flows on br-int is removed in old
> style:
>
>
>
> File
> /neutron/plugins/ml2/drivers/openvswitch/agent/ovs_dvr_neutron_agent.py
>
> 200     def setup_dvr_flows_on_integ_br(self):
>
> 201         '''Setup up initial dvr flows into br-int'''
>
> 202         if not self.in_distributed_mode():
>
> 203             return
>
> 204
>
> 205         LOG.info(_LI("L2 Agent operating in DVR Mode with MAC %s"),
>
> 206                  self.dvr_mac_address)
>
> 207         # Remove existing flows in integration bridge
>
> 208         self.int_br.delete_flows()
>
>
>
> This is kind of bummer when seeing the effort to preserve the flows in [1].
>
> This should not affect VM network access, since the br-tun is configured
> properly and br-int is in learning mode.
>
>
>
> Should this be fixed in Liberty cycle?
>
>
>
> This is something similar to submitted bug:
> https://bugs.launchpad.net/neutron/+bug/1436156
>
>
>
> [1] https://bugs.launchpad.net/neutron/+bug/1383674
>
>
>
> Regards,
>
> Artur Korzeniewski
>
> --------------------------------------------
>
> Intel Technology Poland sp. z o.o.
>
> KRS 101882
>
> ul. Slowackiego 173, 80-298 Gdansk
>
>
>
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>


-- 
Regards,
Ann Kamyshnikova
Mirantis, Inc
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