Ate you getting any particular log messages that lead you to conclude your issue lies with OVS? I've hit lots of kernel limits under those conditions before OVS itself ever noticed. Anything in dmesg, journal or neutron logs of interest? On Tue, Sep 25, 2018, 7:27 PM Jean-Philippe Méthot < jp.methot at planethoster.info> wrote: > Hi, > > Are there some recommendations regarding kernel settings configuration for > openvswitch? We’ve just been hit by what we believe may be an attack of > some kind we have never seen before and we’re wondering if there’s a way to > optimize our network nodes kernel for openvswitch operation and thus > minimize the impact of such an attack, or whatever it was. > > Best regards, > > Jean-Philippe Méthot > Openstack system administrator > Administrateur système Openstack > PlanetHoster inc. > > > > > _______________________________________________ > OpenStack-operators mailing list > OpenStack-operators at lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-operators > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-operators/attachments/20180925/a98c9d35/attachment.html>