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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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