[ovs-discuss] Question about megaflow

Ben Pfaff blp at ovn.org
Fri Sep 1 03:52:57 UTC 2017

On Thu, Aug 31, 2017 at 11:05:34PM -0400, Heyang Wang wrote:
> I have several questions about implementation of megaflow in OVS:
> 1. I want to make sure that megaflow is not supporting priority, so it will
> not cache the overlapping rules in userspace, am I right?
> 2. if overlapping rule will not be added to megaflow cache, what if a new
> rule is adding to the userspace, which will overlap with the rules already
> in the megaflow cache already, what will OVS do at this time?
> 3. Will you have a good solution to solving overlapping rules problem in
> megaflow cache in next version of OVS?

There seems to be an assumption here that overlapping flows cause some
kind of problem for megaflows.  They don't.

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