[ovs-discuss] disable flow-cache doesn't work

Ben Pfaff blp at ovn.org
Thu Apr 13 17:53:22 UTC 2017


You can see from the log in that thread that the same error occurs for
both flow_add and execute.  "execute" is what OVS would use for handling
packets one at a time, so that indicates that disabling the flow cache
would not help.

On Thu, Apr 13, 2017 at 10:36:03PM +0530, f 62 wrote:
> Hi Ben,
> 
>     I suspect there is an issue due to flow cache when output to multiple
> VXLAN tunnel . Have sent an email also sub:- "Packet drop when output to
> multiple VXLAN tunnel".
> 
> On Thu, Apr 13, 2017 at 10:08 PM, Ben Pfaff <blp at ovn.org> wrote:
> 
> > On Thu, Apr 13, 2017 at 09:52:51PM +0530, f 62 wrote:
> > >  Hi,
> > >
> > >
> > >    This command "sudo ovs-appctl upcall/set-flow-limit 0" seems has no
> > > effect to disable flow cache.
> > >
> > > Checked code to set may_put =0 to achieve same, (
> > > https://mail.openvswitch.org/pipermail/ovs-dev/2014-January/279447.html
> > ),
> > > but seems the patch is removed.
> >
> > What's your underlying goal?  It does not normally make sense to disable
> > the flow cache.
> >


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