[ovs-discuss] Does a megaflow cantain wildcard bits in OVS cache?

Hao Wu wuhao.thu at gmail.com
Tue Sep 29 03:33:15 UTC 2015

Hi Ben,

  I think each megaflow table is built according to a certain tuple
consisting of fields. If we don't care some bits in the packet, we won't
select them in the matching tuple, so why we still need the wildcard bits?


On Tue, Sep 29, 2015 at 11:16 AM, Ben Pfaff <blp at nicira.com> wrote:

> On Tue, Sep 29, 2015 at 11:12:17AM +0800, Hao Wu wrote:
> >    In OVS NSDI'15 paper, it mentions there is a new megaflow cache in the
> > kernel space. I think it is an active subset of the flow table in user
> > space. Does a megaflow entry contain any wildcard bits?
> Yes.
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