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Hi wei,

the agent will be re-worked with modular l2 agent [1]
your proposal could be handle during this work.

[1]https://review.openstack.org/#/c/106189/

Mathieu

On Tue, Oct 28, 2014 at 4:01 AM, Damon Wang <damon.devops at gmail.com> wrote:
> Hi all,
>
> We have suffered a long down time when we upgrade our public cloud's neutron
> into the latest version (close to Juno RC2), for ovs-agent cleaned all flows
> in br-tun when it start.
>
> I find our current design is remove all flows then add flow by entry, this
> will cause every network node will break off all tunnels between other
> network node and all compute node.
>
> ( plugins.openvswitch.agent.ovs_neutron_agent.OVSNeutronAgent.__init__ ->
> plugins.openvswitch.agent.ovs_neutron_agent.OVSNeutronAgent#setup_tunnel_br
> :
> self.tun_br.remove_all_flows() )
>
> Do we have any mechanism or ideas to avoid this, or should we rethink
> current design? Welcome comments
>
> Wei Wang
>
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